Koyama Motomichi 小山元道

… Alternative Names

KOYAMA Motomichi 小山元道

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Researcher Number	20722705
Other IDs
Affiliation (Current)	2025: 東北大学, 金属材料研究所, 准教授
Affiliation (based on the past Project Information) *help	2019 – 2024: 東北大学, 金属材料研究所, 准教授 2016 – 2018: 九州大学, 工学研究院, 助教 2014 – 2016: 九州大学, 工学(系)研究科(研究院), 助教 2015: 九州大学, 大学院工学研究院, 助教
Review Section/Research Field	Principal Investigator Basic Section 26040:Structural materials and functional materials-related / Structural/Functional materials / Basic Section 26040:Structural materials and functional materials-related Except Principal Investigator Structural/Functional materials / Medium-sized Section 26:Materials engineering and related fields / Medium-sized Section 18:Mechanics of materials, production engineering, design engineering, and related fields
Keywords	Principal Investigator 水素脆化 / 電子チャネリングコントラスト / その場観察 / 転位運動 / 銀デコレーション / 電子チャネリング / 水素可視化 / 複相鋼 / 鉄合金 / 固溶強化 … More / 元素移流拡散解析 / 結晶塑性有限要素法 / き裂 / そのば観察 / 金属疲労 / 材料強度 / 耐水素鋼 / 鉄鋼材料 / 損傷発達 / ケルビンプローブ / 損傷成長 … More Except Principal Investigator 鉄鋼材料 / 水素 / 高強度鋼 / 水素脆化 / 鉄鋼 / 破壊 / マルテンサイト変態 / 疲労き裂進展 / 疲労変形 / 延性破壊 / 深層学習 / サロゲート逆変形解析 / 観察像同化 / 疲労き裂 / 高高度鋼 / 引張試験 / マルテンサイト鋼 / 昇温脱離法 / 昇温脱離 / 応力 / 水素拡散 / 昇温脱離分析 / 水素トラップ / 遅れ破壊 / 金属疲労 / 構造材料 / 微小疲労き裂 / 疲労き裂停留 / アルミ合金 / アルミニウム合金 / 耐水素脆化性 / 耐疲労性 / ひずみ時効 / ミクロ組織 / 機械的性質 / High-Mn steel / 震災復興 / 耐震性 / 低サイクル疲労 / 高Mnオーステナイト鋼 Less

水素由来の『硬化』に起因する脆化メカニズムの解明Principal Investigator
- Principal Investigator
  
  小山元道
- Project Period (FY)
  2024 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 26040:Structural materials and functional materials-related
- Research Institution
  Tohoku University
高圧水素環境下における疲労き裂進展抵抗の決定因子の解明と高強度耐水素鋼の創製
- Principal Investigator
  
  松永久生
- Project Period (FY)
  2024 – 2027
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 18:Mechanics of materials, production engineering, design engineering, and related fields
- Research Institution
  Kyushu University
逆解析フェイクを介した破断部金属組織の力学量分布同化解析と組織設計への展開
- Principal Investigator
  
  松野崇
- Project Period (FY)
  2024 – 2028
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 26:Materials engineering and related fields
- Research Institution
  Tottori University
原子スケール界面制御による金属の水素誘起脆性破壊抑制Principal Investigator
- Principal Investigator
  
  小山元道
- Project Period (FY)
  2024 – 2025
- Research Category
  
  Grant-in-Aid for JSPS Fellows
- Review Section
  
  Basic Section 26040:Structural materials and functional materials-related
- Research Institution
  Tohoku University
Development of In situ characterization methods for dislocation motion at a crack tip: overcoming metal fatiguePrincipal Investigator
- Principal Investigator
  
  Koyama Motomichi
- Project Period (FY)
  2020 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 26040:Structural materials and functional materials-related
- Research Institution
  Tohoku University
Effect of stress on hydrogen trapping state and elucidation of hydrogen embrittlement
- Principal Investigator
  
  Akiyama Eiji
- Project Period (FY)
  2019 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 26:Materials engineering and related fields
- Research Institution
  Tohoku University
Multi-probe Characterization of Hydrogen, Dislocation, and Damage: towards unraveling hydrogen embrittlement mechanism of advanced high strength steelsPrincipal Investigator
- Principal Investigator
  
  Koyama Motomichi
- Project Period (FY)
  2017 – 2019
- Research Category
  
  Grant-in-Aid for Young Scientists (A)
- Research Field
  
  Structural/Functional materials
- Research Institution
  Tohoku University
  Kyushu University
Fatigue crack propagation in steels
- Principal Investigator
  
  TSUZAKI Kaneaki
- Project Period (FY)
  2016 – 2020
- Research Category
  
  Grant-in-Aid for Scientific Research (S)
- Research Field
  
  Structural/Functional materials
- Research Institution
  National Institute for Materials Science
  Kyushu University
水素社会実現に貢献する水素インフラ用構造材料としての「耐水素鋼」の創出
- Principal Investigator
  
  津崎兼彰
- Project Period (FY)
  2016
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Structural/Functional materials
- Research Institution
  Kyushu University
Methodological development of multi-scale characterization toward clarifying hydrogen embrittlement mechanism of multi-phase steelsPrincipal Investigator
- Principal Investigator
  
  Koyama Motomichi
- Project Period (FY)
  2015 – 2016
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Structural/Functional materials
- Research Institution
  Kyushu University
Designing Ferrous Shape-Memory Alloys with Improved Fatigue Lives toward New Anti-Seismic Metallic Damper for Tower Buildings
- Principal Investigator
  
  Tsuzaki Kaneaki
- Project Period (FY)
  2013 – 2015
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Structural/Functional materials
- Research Institution
  Kyushu University

All 2023 2022 2021 2020 2019 2018 2017 2016 2015

All Journal Article Presentation

[Journal Article] Cr Effects on the Local Plasticity Evolution and Fracture Behaviors of Ni–Cr Alloys Tensile-Tested under Hydrogen Charging2023
- Author(s)
  Kobayashi Naohiro、Koyama Motomichi、Yamamura Misaho、Hojo Tomohiko、Akiyama Eiji
- Journal Title
  
  MATERIALS TRANSACTIONS
  
  Volume: 64 Issue: 1 Pages: 212-219
- DOI
  10.2320/matertrans.MT-M2022140
- ISSN
  1345-9678, 1347-5320
- Year and Date
  2023-01-01
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20H02457, KAKENHI-PLANNED-18H05514
[Journal Article] Mechanical loading effect on the hydrogen uptake of tempered martensite steel: Elastic strain effect vs. plastic strain effect2023
- Author(s)
  Masuda Yota、Koyama Motomichi、Kakinuma Hiroshi、Akiyama Eiji
- Journal Title
  
  Materials Science and Engineering: A
  
  Volume: 862 Pages: 144486-144486
- DOI
  10.1016/j.msea.2022.144486
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H02457, KAKENHI-PLANNED-18H05514
[Journal Article] Microstructure and Plasticity Evolution During Lüders Deformation in an Fe-5Mn-0.1C Medium-Mn Steel2022
- Author(s)
  Koyama Motomichi、Yamashita Takayuki、Morooka Satoshi、Sawaguchi Takahiro、Yang Zhipeng、Hojo Tomohiko、Kawasaki Takuro、Harjo Stefanus
- Journal Title
  
  ISIJ International
  
  Volume: 62 Issue: 10 Pages: 2036-2042
- DOI
  10.2355/isijinternational.ISIJINT-2021-510
- NAID
  130008154264
- ISSN
  0915-1559, 1347-5460
- Year and Date
  2022-10-15
- Language
  English
- Data Source
  KAKENHI-PROJECT-20H02457
[Journal Article] Annealing Time Effects on Mechanically Long Fatigue Crack Growth of TRIP-maraging Steels2022
- Author(s)
  Mizoguchi Tomoki、Koyama Motomichi、Noguchi Hiroshi
- Journal Title
  
  ISIJ International
  
  Volume: 62 Issue: 2 Pages: 399-401
- DOI
  10.2355/isijinternational.ISIJINT-2021-093
- NAID
  130008160464
- ISSN
  0915-1559, 1347-5460
- Year and Date
  2022-02-15
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20H02457
[Journal Article] Hierarchical Deformation Heterogeneity during Lüders Band Propagation in an Fe-5Mn-0.1C Medium Mn Steel Clarified through in situ Scanning Electron Microscopy2022
- Author(s)
 Koyama Motomichi、Yamashita Takayuki、Morooka Satoshi、Yang Zhipeng、Varanasi Rama Srinivas、Hojo Tomohiko、Kawasaki Takuro、Harjo Stefanus
- Journal Title
 
 ISIJ International
 
 Volume: 62 Issue: 10 Pages: 2043-2053
- DOI
 10.2355/isijinternational.ISIJINT-2022-098
- ISSN
 0915-1559, 1347-5460
- Year and Date
 2022-10-15
- Language
 English
- Peer Reviewed / Open Access
- Data Source
 KAKENHI-PROJECT-21K14418, KAKENHI-PROJECT-20H02457
[Journal Article] Quantitative Evaluation of the Relationship between Strain and Color Change in Opal Photonic Crystal Films and Application into Complex Specimen Geometries2022
- Author(s)
  Zhou Yutao、Yang Zhipeng、Koyama Motomichi、Ajito Saya、Hojo Tomohiko、Fudouzi Hiroshi、Akiyama Eiji
- Journal Title
  
  ISIJ International
  
  Volume: 62 Issue: 10 Pages: 2061-2068
- DOI
  10.2355/isijinternational.ISIJINT-2022-054
- ISSN
  0915-1559, 1347-5460
- Year and Date
  2022-10-15
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20H02457, KAKENHI-PLANNED-18H05514
[Journal Article] Pre-straining alters hydrogen-assisted cracking site and local hydrogen diffusivity in a nitrogen-doped duplex steel2022
- Author(s)
  Maeda Milene Yumi、Koyama Motomichi、Nishimura Hayato、Cintho Osvaldo Mitsuyuki、Akiyama Eiji
- Journal Title
  
  Scripta Materialia
  
  Volume: 207 Pages: 114272-114272
- DOI
  10.1016/j.scriptamat.2021.114272
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H02457, KAKENHI-PLANNED-18H05514
[Journal Article] Crack Tip Deformation during Dwell Fatigue and Its Correlation with Crack/Fracture Surface Morphologies in a Bi-Modal Ti–6Al–4V Alloy2022
- Author(s)
  Aoki Yuma、Koyama Motomichi、Tanaka Masaki、Tsuzaki Kaneaki
- Journal Title
  
  MATERIALS TRANSACTIONS
  
  Volume: 63 Issue: 9 Pages: 1232-1241
- DOI
  10.2320/matertrans.MT-M2022076
- ISSN
  1345-9678, 1347-5320
- Year and Date
  2022-09-01
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20H02457, KAKENHI-PLANNED-18H05451
[Journal Article] Hydrogen-accelerated fatigue crack growth of equiatomic Fe-Cr-Ni-Mn-Co high-entropy alloy evaluated by compact tension testing2022
- Author(s)
  Koyama Motomichi、Mizumachi Shunsuke、Akiyama Eiji、Tsuzaki Kaneaki
- Journal Title
  
  Materials Science and Engineering: A
  
  Volume: 848 Pages: 143394-143394
- DOI
  10.1016/j.msea.2022.143394
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-21K04702, KAKENHI-PROJECT-20H02457, KAKENHI-PLANNED-18H05514
[Journal Article] Factors Distinguishing Hydrogen-Assisted Intergranular and Intergranular-Like Fractures in a Tempered Lath Martensitic Steel2022
- Author(s)
  Chen Tingshu、Chiba Takahiro、Koyama Motomichi、Akiyama Eiji、Takai Kenichi
- Journal Title
  
  Metallurgical and Materials Transactions A
  
  Volume: 53 Issue: 5 Pages: 1645-1658
- DOI
  10.1007/s11661-022-06608-2
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H02457, KAKENHI-PLANNED-18H05514
[Journal Article] Hydrogen Embrittlement Behavior of Pure Ni and Ni–20Cr Alloy with Different Grain Sizes2022
- Author(s)
  Kobayashi Naohiro、Koyama Motomichi、Kobayashi Kenji、Hojo Tomohiko、Akiyama Eiji
- Journal Title
  
  MATERIALS TRANSACTIONS
  
  Volume: 63 Issue: 2 Pages: 247-256
- DOI
  10.2320/matertrans.MT-M2021170
- NAID
  130008144074
- ISSN
  1345-9678, 1347-5320
- Year and Date
  2022-02-01
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20H02457, KAKENHI-PLANNED-18H05514
[Journal Article] Multi-Probe Characterization of Plasticity Heterogeneity: Requirement of Alloy Design Considering Dislocation Planarity for Developing Crack-Resistant Ni–Cr Alloys2022
- Author(s)
  Kong Taein、Koyama Motomichi、Yamamura Misaho、Akiyama Eiji
- Journal Title
  
  MATERIALS TRANSACTIONS
  
  Volume: 63 Issue: 1 Pages: 88-91
- DOI
  10.2320/matertrans.MT-M2021191
- NAID
  130008134287
- ISSN
  1345-9678, 1347-5320
- Year and Date
  2022-01-01
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20H02457, KAKENHI-PLANNED-18H05514
[Journal Article] Strain Rate and Temperature Effects on Hydrogen Embrittlement of Stable and Metastable High-Entropy Alloys2022
- Author(s)
  Koyama M.、Ichii K.、Tsuzaki K.
- Journal Title
  
  Physical Mesomechanics
  
  Volume: 25 Issue: 5 Pages: 385-392
- DOI
  10.1134/s1029959922050010
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H02457
[Journal Article] Annealing Time Effects on Mechanically Long Fatigue Crack Growth of TRIP-maraging Steels2021
- Author(s)
  Mizoguchi Tomoki、Koyama Motomichi、Noguchi Hiroshi
- Journal Title
  
  Tetsu-to-Hagane
  
  Volume: 107 Issue: 4 Pages: 321-324
- DOI
  10.2355/tetsutohagane.TETSU-2020-106
- NAID
  130008009172
- ISSN
  0021-1575, 1883-2954
- Language
  Japanese
- Data Source
  KAKENHI-PROJECT-20H02457
[Journal Article] {111} Trace Analysis in ECC Images ―toward In-Situ Observation of Deformation Behavior in FCC Bulk Specimens2021
- Author(s)
 Koyama Motomichi、Nakafuji Keiichiro、Tsuzaki Kaneaki
- Journal Title
 
 Journal of the Japan Institute of Metals and Materials
 
 Volume: 85 Issue: 1 Pages: 17-22
- DOI
 10.2320/jinstmet.JD202003
- NAID
 130007959980
- ISSN
 0021-4876, 1880-6880, 2433-7501
- Year and Date
 2021-01-01
- Language
 Japanese
- Peer Reviewed / Open Access
- Data Source
 KAKENHI-PROJECT-16H06365
[Journal Article] Depressurization-induced diffusionless transformation in pure iron hydrogenated under several gigapascals2021
- Author(s)
  M. Koyama, H. Saitoh, T. Sato, S. Orimo, E. Akiyama
- Journal Title
  
  Materials Letters: X
  
  Volume: 11 Pages: 100078-100078
- DOI
  10.1016/j.mlblux.2021.100078
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PLANNED-18H05513, KAKENHI-PROJECT-20H02457
[Journal Article] Quantification and Characterization of Microdamage Resistance in Metals for Designing High-Strength Ductile Microstructures2021
- Author(s)
  Koyama Motomichi
- Journal Title
  
  Accounts of Materials Research
  
  Volume: 2 Issue: 12 Pages: 1167-1176
- DOI
  10.1021/accountsmr.1c00160
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H02457
[Journal Article] Three-dimensional characterization of low-cycle fatigue crack morphology in TRIP-maraging steel: Crack closure, geometrical uncertainty and wear2021
- Author(s)
  Zhang Zhao、Koyama Motomichi、Tsuzaki Kaneaki、Noguchi Hiroshi
- Journal Title
  
  International Journal of Fatigue
  
  Volume: 143 Pages: 106032-106032
- DOI
  10.1016/j.ijfatigue.2020.106032
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Roles of Hydrogen Content and Pre-strain on Damage Evolution of TRIP-aided Bainitic Ferrite Steel2021
- Author(s)
  Verma Virendra Kumar、Koyama Motomichi、Kumai Bakuya、Hojo Tomohiko、Akiyama Eiji
- Journal Title
  
  ISIJ International
  
  Volume: 61 Issue: 4 Pages: 1309-1314
- DOI
  10.2355/isijinternational.ISIJINT-2020-514
- NAID
  130008024874
- ISSN
  0915-1559, 1347-5460
- Year and Date
  2021-04-15
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20H02457, KAKENHI-PLANNED-18H05514
[Journal Article] Hierarchical Characteristics of Hydrogen-Assisted Crack Growth and Microstructural Strain Evolution in Tempered Martensitic Steels: Case of Quasi-cleavage Fracture2021
- Author(s)
  Chen Tingshu、Chiba Takahiro、Koyama Motomichi、Shibata Akinobu、Akiyama Eiji、Takai Kenichi
- Journal Title
  
  Metallurgical and Materials Transactions A
  
  Volume: 52 Issue: 10 Pages: 4703-4713
- DOI
  10.1007/s11661-021-06423-1
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H02457, KAKENHI-PLANNED-18H05514
[Journal Article] Hydrogen Embrittlement Behavior of Pure Ni and Ni-20Cr Alloy with Different Grain Sizes2021
- Author(s)
  Kobayashi Naohiro、Koyama Motomichi、Kobayashi Kenji、Hojo Tomohiko、Akiyama Eiji
- Journal Title
  
  Journal of the Japan Institute of Metals and Materials
  
  Volume: 85 Issue: 2 Pages: 49-58
- DOI
  10.2320/jinstmet.J2020036
- NAID
  130007974655
- ISSN
  0021-4876, 1880-6880, 2433-7501
- Year and Date
  2021-02-01
- Language
  Japanese
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PLANNED-18H05514
[Journal Article] Hydrogen embrittlement and associated surface crack growth in fine-grained equiatomic CoCrFeMnNi high-entropy alloys with different annealing temperatures evaluated by tensile testing under in situ hydrogen charging2021
- Author(s)
  Wang Haoyu、Koyama Motomichi、Hojo Tomohiko、Akiyama Eiji
- Journal Title
  
  International Journal of Hydrogen Energy
  
  Volume: 46 Issue: 65 Pages: 33028-33038
- DOI
  10.1016/j.ijhydene.2021.07.136
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H02457, KAKENHI-PLANNED-18H05514
[Journal Article] Fatigue Crack Growth at Different Frequencies and Temperatures in an Fe-based Metastable High-entropy Alloy2021
- Author(s)
  Koyama Motomichi、Eguchi Takeshi、Tsuzaki Kaneaki
- Journal Title
  
  ISIJ International
  
  Volume: 61 Issue: 2 Pages: 641-647
- DOI
  10.2355/isijinternational.ISIJINT-2020-504
- NAID
  130007987401
- ISSN
  0915-1559, 1347-5460
- Year and Date
  2021-02-15
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-20H02457
[Journal Article] Microstructure Refinement by Low-Temperature Ausforming in an Fe-Based Metastable High-Entropy Alloy2021
- Author(s)
  Koyama Motomichi、Gondo Takeaki、Tsuzaki Kaneaki
- Journal Title
  
  Metals
  
  Volume: 11 Issue: 5 Pages: 742-742
- DOI
  10.3390/met11050742
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-20H02457, KAKENHI-PROJECT-21K04702
[Journal Article] Stacking fault aggregation during cooling composing FCC-HCP martensitic transformation revealed by in-situ electron channeling contrast imaging in an Fe-high Mn alloy2021
- Author(s)
  Koyama Motomichi、Seo Misaki、Nakafuji Keiichiro、Tsuzaki Kaneaki
- Journal Title
  
  Science and Technology of Advanced Materials
  
  Volume: 22 Issue: 1 Pages: 135-140
- DOI
  10.1080/14686996.2021.1877570
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-20H02457
[Journal Article] Hydrogen-assisted damage evolution in nitrogen-doped duplex stainless steel2021
- Author(s)
  Maeda Milene Yumi、Koyama Motomichi、Nishimura Hayato、Cintho Osvaldo Mitsuyuki、Akiyama Eiji
- Journal Title
  
  International Journal of Hydrogen Energy
  
  Volume: 46 Issue: 2 Pages: 2716-2728
- DOI
  10.1016/j.ijhydene.2020.10.152
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H02457, KAKENHI-PLANNED-18H05514
[Journal Article] Hydrogenation treatment under several gigapascals assists diffusionless transformation in a face-centered cubic steel2021
- Author(s)
  M. Koyama, H. Saitoh, T. Sato, S. Orimo, E. Akiyama
- Journal Title
  
  Scientific Reports
  
  Volume: 11 Issue: 1
- DOI
  10.1038/s41598-021-98938-1
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PLANNED-18H05513, KAKENHI-PROJECT-20H02457
[Journal Article] Strain rate sensitivity of hydrogen-assisted ε-martensitic transformation and associated hydrogen embrittlement in high-Mn steel2021
- Author(s)
  Hao Chunxi、Koyama Motomichi、Ajito Saya、Akiyama Eiji
- Journal Title
  
  International Journal of Hydrogen Energy
  
  Volume: 46 Issue: 53 Pages: 27221-27233
- DOI
  10.1016/j.ijhydene.2021.05.162
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H02457, KAKENHI-PLANNED-18H05514
[Journal Article] Origin of micrometer-scale dislocation motion during hydrogen desorption2020
- Author(s)
  Koyama Motomichi、Taheri-Mousavi Seyedeh Mohadeseh、Yan Haoxue、Kim Jinwoo、Cameron Benjamin Clive、Moeini-Ardakani Seyed Sina、Li Ju、Tasan Cemal Cem
- Journal Title
  
  Science Advances
  
  Volume: 6 Issue: 23
- DOI
  10.1126/sciadv.aaz1187
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-20H02457
[Journal Article] Fatigue crack propagation modes: Plastic deformation mode and damage accumulation mode2020
- Author(s)
  Shigeru Hamada, Kejin Zhang, Motomichi Koyama, Masaharu Ueda, Hiroshi Noguchi
- Journal Title
  
  International Journal of Fracture
  
  Volume: 222 Pages: 111-121
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Plastic deformation sequence and strain gradient characteristics of hydrogen-induced delayed crack propagation in single-crystalline Fe-Si alloy2020
- Author(s)
  Huynh Thanh Thuong、Koyama Motomichi、Takahashi Yoshimasa、Hamada Shigeru、Tsuzaki Kaneaki、Noguchi Hiroshi
- Journal Title
  
  Scripta Materialia
  
  Volume: 178 Pages: 99-103
- DOI
  10.1016/j.scriptamat.2019.11.012
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Novel -75°C SEM cooling stage: application for martensitic transformation in steel2020
- Author(s)
  Tsuzaki Kaneaki、Koyama Motomichi、Sasaki Ryosuke、Nakafuji Keiichiro、Oie Kazushi、Shibata Akinobu、Gondo Takashi、Miyazaki Hiroya、Akamine Hiroshi、Nishida Minoru
- Journal Title
  
  Microscopy
  
  Volume: 70 Issue: 2 Pages: 250-254
- DOI
  10.1093/jmicro/dfaa051
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-19H00829, KAKENHI-PROJECT-20H02457
[Journal Article] Influence of dynamic-strain aging due to excess Mg on fatigue crack growth rate scatter in Al6061-T6 alloy2020
- Author(s)
  Anis Samsol Faizal、Koyama Motomichi、Hamada Shigeru、Noguchi Hiroshi
- Journal Title
  
  Theoretical and Applied Fracture Mechanics
  
  Volume: 108 Pages: 102617-102617
- DOI
  10.1016/j.tafmec.2020.102617
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] In-Situ Electron Channeling Contrast Imaging under Tensile Loading: Residual Stress, Dislocation Motion, and Slip Line Formation2020
- Author(s)
  Nakafuji Keiichiro、Koyama Motomichi、Tsuzaki Kaneaki
- Journal Title
  
  Scientific Reports
  
  Volume: 10 Issue: 1
- DOI
  10.1038/s41598-020-59429-x
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Influence of Mn Addition on Fatigue Limit and Coaxing Effect in Ferritic Steel Containing Solute Carbon2020
- Author(s)
  Uchida Yusui、Koyama Motomichi、Fukushima Yoshihiro、Tsuzaki Kaneaki
- Journal Title
  
  Tetsu-to-Hagane
  
  Volume: 106 Issue: 6 Pages: 402-412
- DOI
  10.2355/tetsutohagane.TETSU-2019-092
- NAID
  130007849723
- ISSN
  0021-1575, 1883-2954
- Language
  Japanese
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Effects of hydrogen content that alters damage evolution mechanisms in SUH 660 precipitation-strengthened Fe-Cr-Ni steel2020
- Author(s)
  Verma Virendra Kumar、Koyama Motomichi、Hamada Shigeru、Akiyama Eiji
- Journal Title
  
  Materials Science and Engineering: A
  
  Volume: 791 Pages: 139750-139750
- DOI
  10.1016/j.msea.2020.139750
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-18H05514, KAKENHI-PROJECT-20H02457
[Journal Article] Planar slip-driven fatigue crack initiation and propagation in an equiatomic CrMnFeCoNi high-entropy alloy2020
- Author(s)
  Suzuki Kai、Koyama Motomochi、Hamada Shigeru、Tsuzaki Kaneaki、Noguchi Hiroshi
- Journal Title
  
  International Journal of Fatigue
  
  Volume: 133 Pages: 105418-105418
- DOI
  10.1016/j.ijfatigue.2019.105418
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Quantitative Evaluation of Hydrogen Effects on Evolutions of Deformation-Induced ε-Martensite and Damage in a High-Mn Steel2020
- Author(s)
  Hao Chunxi、Koyama Motomichi、Akiyama Eiji
- Journal Title
  
  Metallurgical and Materials Transactions A
  
  Volume: 51 Issue: 12 Pages: 6184-6194
- DOI
  10.1007/s11661-020-06021-7
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PLANNED-18H05514, KAKENHI-PROJECT-20H02457
[Journal Article] Equivalence between shallow notch and shallow crack in structural failure caused by plastic instability2020
- Author(s)
  Liu He、Hamada Shigeru、Koyama Motomichi、Noguchi Hiroshi
- Journal Title
  
  Theoretical and Applied Fracture Mechanics
  
  Volume: 108 Pages: 102577-102577
- DOI
  10.1016/j.tafmec.2020.102577
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Availability of Opal Photonic Crystal Films for Visualizing Heterogeneous Strain Evolution in Steels: Example of Lüders Deformation2020
- Author(s)
  Yang Zhipeng、Koyama Motomichi、Fudouzi Hiroshi、Hojo Tomohiko、Akiyama Eiji
- Journal Title
  
  ISIJ International
  
  Volume: 60 Issue: 11 Pages: 2604-2608
- DOI
  10.2355/isijinternational.ISIJINT-2020-223
- NAID
  130007940337
- ISSN
  0915-1559, 1347-5460
- Year and Date
  2020-11-15
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PLANNED-18H05514, KAKENHI-PROJECT-20H02457
[Journal Article] Simplified stress field determination for an inclined crack and interaction between two cracks under tension2020
- Author(s)
  Anis Samsol Faizal、Koyama Motomichi、Hamada Shigeru、Noguchi Hiroshi
- Journal Title
  
  Theoretical and Applied Fracture Mechanics
  
  Volume: 107 Pages: 102561-102561
- DOI
  10.1016/j.tafmec.2020.102561
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Gaseous hydrogen embrittlement of a Ni-free austenitic stainless steel containing 1 mass% nitrogen: Effects of nitrogen-enhanced dislocation planarity2020
- Author(s)
  Koyama Motomichi、Habib Kishan、Masumura Takuro、Tsuchiyama Toshihiro、Noguchi Hiroshi
- Journal Title
  
  International Journal of Hydrogen Energy
  
  Volume: 45 Issue: 16 Pages: 10209-10218
- DOI
  10.1016/j.ijhydene.2020.02.014
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956, KAKENHI-PROJECT-18K14016
[Journal Article] Multiple damage mechanisms facilitated by planar dislocation glide in a commercial-grade precipitation-strengthened Fe-Ni-Cr-based steel2020
- Author(s)
  Verma Virendra Kumar、Koyama Motomichi、Hamada Shigeru、Akiyama Eiji
- Journal Title
  
  Materials Science and Engineering: A
  
  Volume: 782 Pages: 139250-139250
- DOI
  10.1016/j.msea.2020.139250
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-18H05514, KAKENHI-PROJECT-17H04956
[Journal Article] Growth Behavior of a Mechanically Long Fatigue Crack in an FeCrNiMnCo High Entropy Alloy: A Comparison with an Austenitic Stainless Steel2020
- Author(s)
  Mizumachi Shunsuke、Koyama Motomichi、Fukushima Yoshihiro、Tsuzaki Kaneaki
- Journal Title
  
  ISIJ International
  
  Volume: 60 Issue: 1 Pages: 175-181
- DOI
  10.2355/isijinternational.ISIJINT-2019-230
- NAID
  130007786230
- ISSN
  0915-1559, 1347-5460
- Year and Date
  2020-01-15
- Language
  English
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Strain rate and hydrogen effects on crack growth from a notch in a Fe-high-Mn steel containing 1.1 wt% solute carbon2020
- Author(s)
  Najam Hina、Koyama Motomichi、Bal Burak、Akiyama Eiji、Tsuzaki Kaneaki
- Journal Title
  
  International Journal of Hydrogen Energy
  
  Volume: 45 Issue: 1 Pages: 1125-1139
- DOI
  10.1016/j.ijhydene.2019.10.227
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-18H05514, KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Thermal Stability of Resistance to Propagation of Mechanically Small Fatigue-cracks in an Fe-N Binary Ferritic Steel2020
- Author(s)
  Koyama Motomichi、Habib Kishan、Yokoi Tatsuo、Sakurada Eisaku、Yoshimura Nobuyuki、Ushioda Kohsaku、Tsuzaki Kaneaki、Noguchi Hiroshi
- Journal Title
  
  Tetsu-to-Hagane
  
  Volume: 106 Issue: 6 Pages: 420-428
- DOI
  10.2355/tetsutohagane.TETSU-2019-091
- NAID
  130007849751
- ISSN
  0021-1575, 1883-2954
- Language
  Japanese
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Hydrogen Enhances Shape Memory Effect of a Ferrous Face-Centered Cubic Alloy2020
- Author(s)
  Koyama Motomichi、Hao Chunxi、Akiyama Eiji、Tsuzaki Kaneaki
- Journal Title
  
  Metallurgical and Materials Transactions A
  
  Volume: 51 Issue: 9 Pages: 4439-4441
- DOI
  10.1007/s11661-020-05886-y
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-20H02457
[Journal Article] Effects of Mn Content and Grain Size on Hydrogen Embrittlement Susceptibility of Face-Centered Cubic High-Entropy Alloys2020
- Author(s)
  Koyama Motomichi、Wang Haoyu、Verma Virendra Kumar、Tsuzaki Kaneaki、Akiyama Eiji
- Journal Title
  
  Metallurgical and Materials Transactions A
  
  Volume: 51 Issue: 11 Pages: 5612-5616
- DOI
  10.1007/s11661-020-05966-z
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PLANNED-18H05514, KAKENHI-PROJECT-20H02457
[Journal Article] Shallow crack effect on evaluation of residual tensile strength: Harmless and stable cracks in finite-sized structure made of ductile metals2020
- Author(s)
  Liu He、Hamada Shigeru、Koyama Motomichi、Noguchi Hiroshi
- Journal Title
  
  Theoretical and Applied Fracture Mechanics
  
  Volume: 109 Pages: 102734-102734
- DOI
  10.1016/j.tafmec.2020.102734
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Fatigue Behavior in an Fe-N Binary Ferritic Steel: Similarity and Difference between Carbon and Nitrogen2020
- Author(s)
  Habib Kishan、Koyama Motomichi、Sakurada Eisaku、Yoshimura Nobuyuki、Yokoi Tatsuo、Ushioda Kohsaku、Tsuzaki Kaneaki、Noguchi Hiroshi
- Journal Title
  
  Tetsu-to-Hagane
  
  Volume: 106 Issue: 6 Pages: 413-419
- DOI
  10.2355/tetsutohagane.TETSU-2019-051
- NAID
  130007849722
- ISSN
  0021-1575, 1883-2954
- Language
  Japanese
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Distinguishing geometric and metallurgic hydrogen-embrittlement susceptibilities in pre-cracked structures made of interstitial-free steel under monotonic tension2020
- Author(s)
  Liu He、Hamada Shigeru、Koyama Motomichi、Noguchi Hiroshi
- Journal Title
  
  Theoretical and Applied Fracture Mechanics
  
  Volume: 108 Pages: 102574-102574
- DOI
  10.1016/j.tafmec.2020.102574
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] EBSD- and ECCI-based Assessments of Inhomogeneous Plastic Strain Evolution Coupled with Digital Image Correlation2019
- Author(s)
  Kakimoto Ryohei、Koyama Motomichi、Tsuzaki Kaneaki
- Journal Title
  
  ISIJ International
  
  Volume: 59 Issue: 12 Pages: 2334-2342
- DOI
  10.2355/isijinternational.ISIJINT-2019-232
- NAID
  130007768735
- ISSN
  0915-1559, 1347-5460
- Year and Date
  2019-12-15
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Detection of hydrogen effusion before, during, and after martensitic transformation: Example of multiphase transformation-induced plasticity steel2019
- Author(s)
  Koyama Motomichi、Yamasaki Daisuke、Ikeda Arisa、Hojo Tomohiko、Akiyama Eiji、Takai Kenichi、Tsuzaki Kaneaki
- Journal Title
  
  International Journal of Hydrogen Energy
  
  Volume: 44 Issue: 47 Pages: 26028-26035
- DOI
  10.1016/j.ijhydene.2019.07.254
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-18H05514, KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Strain-rate sensitivity of hydrogen-assisted damage evolution and failure in dual-phase steel: From vacancy to micrometer-scale void growth2019
- Author(s)
  Kumamoto T.、Koyama M.、Sato K.、Tsuzaki K.
- Journal Title
  
  Engineering Fracture Mechanics
  
  Volume: 216 Pages: 106513-106513
- DOI
  10.1016/j.engfracmech.2019.106513
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Fatigue Resistance of Laminated and Non-laminated TRIP-maraging Steels: Crack Roughness vs Tensile Strength2019
- Author(s)
  Zhang Zhao、Koyama Motomichi、Wang Meimei、Tasan Cemal Cem、Noguchi Hiroshi
- Journal Title
  
  Metallurgical and Materials Transactions A
  
  Volume: 50 Issue: 3 Pages: 1142-1145
- DOI
  10.1007/s11661-018-5081-6
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Resistance to mechanically small fatigue crack growth in ultrafine grained interstitial-free steel fabricated by accumulative roll-bonding2019
- Author(s)
  Lin X.、Koyama M.、Gao S.、Tsuji N.、Tsuzaki K.、Noguchi H.
- Journal Title
  
  International Journal of Fatigue
  
  Volume: 118 Pages: 117-125
- DOI
  10.1016/j.ijfatigue.2018.09.002
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] First-Principles Study of Chemical Driving Force for Face Centered Cubic to Hexagonal Close Packed Martensitic Transformation in Hydrogen-Charged Iron2019
- Author(s)
  Kuroki Y.、Kawano S.、Iikubo S.、Ohtani H.、Koyama M.、Tsuzaki K.
- Journal Title
  
  Metallurgical and Materials Transactions A
  
  Volume: 50 Issue: 7 Pages: 3019-3023
- DOI
  10.1007/s11661-019-05237-6
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Fatigue Behavior in an Fe–N Binary Ferritic Steel: Similarity and Difference between Carbon and Nitrogen2019
- Author(s)
  Habib Kishan、Koyama Motomichi、Sakurada Eisaku、Yoshimura Nobuyuki、Yokoi Tatsuo、Ushioda Kohsaku、Tsuzaki Kaneaki、Noguchi Hiroshi
- Journal Title
  
  ISIJ International
  
  Volume: 59 Issue: 1 Pages: 186-191
- DOI
  10.2355/isijinternational.ISIJINT-2018-535
- NAID
  130007580291
- ISSN
  0915-1559, 1347-5460
- Year and Date
  2019-01-15
- Language
  English
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Overview of metastability and compositional complexity effects for hydrogen-resistant iron alloys: Inverse austenite stability effects2019
- Author(s)
  Koyama Motomichi、Tasan Cemal Cem、Tsuzaki Kaneaki
- Journal Title
  
  Engineering Fracture Mechanics
  
  Volume: In press Pages: 123-133
- DOI
  10.1016/j.engfracmech.2019.03.049
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H04956, KAKENHI-PROJECT-16H06365
[Journal Article] Transformation-assisted hydrogen desorption during deformation in steels: Examples of α′- and ε-Martensite2019
- Author(s)
  Hojo Tomohiko、Koyama Motomichi、Terao Natsuki、Tsuzaki Kaneaki、Akiyama Eiji
- Journal Title
  
  International Journal of Hydrogen Energy
  
  Volume: 44 Issue: 57 Pages: 30472-30477
- DOI
  10.1016/j.ijhydene.2019.09.171
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PLANNED-18H05514, KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Mode I fatigue crack growth induced by strain-aging in precipitation-hardened aluminum alloys2019
- Author(s)
  Anis Samsol Faizal、Koyama Motomichi、Hamada Shigeru、Noguchi Hiroshi
- Journal Title
  
  Theoretical and Applied Fracture Mechanics
  
  Volume: 104 Pages: 102340-102340
- DOI
  10.1016/j.tafmec.2019.102340
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Dislocation motion at a fatigue crack tip in a high-nitrogen steel clarified through in situ electron channeling contrast imaging2019
- Author(s)
  Habib Kishan、Koyama Motomichi、Tsuchiyama Toshihiro、Noguchi Hiroshi
- Journal Title
  
  Materials Characterization
  
  Volume: 158 Pages: 109930-109930
- DOI
  10.1016/j.matchar.2019.109930
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Fatigue Crack Propagation Resistance in Metastable Laminated Microstructures2019
- Author(s)
  Koyama Motomichi、Noguchi Hiroshi、Tsuzaki Kaneaki
- Journal Title
  
  Materia Japan
  
  Volume: 58 Issue: 4 Pages: 206-213
- DOI
  10.2320/materia.58.206
- NAID
  130007621643
- ISSN
  1340-2625, 1884-5843
- Year and Date
  2019-04-01
- Language
  Japanese
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Revisiting the effects of hydrogen on deformation-induced γ-ε martensitic transformation2019
- Author(s)
  Koyama Motomichi、Terao Natsuki、Tsuzaki Kaneaki
- Journal Title
  
  Materials Letters
  
  Volume: 249 Pages: 197-200
- DOI
  10.1016/j.matlet.2019.04.093
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] EBSD and ECCI Based Assessments of Inhomogeneous Plastic Strain Evolution Coupled with Digital Image Correlation2019
- Author(s)
  Kakimoto Ryohei、Koyama Motomichi、Tsuzaki Kaneaki
- Journal Title
  
  Tetsu-to-Hagane
  
  Volume: 105 Issue: 2 Pages: 222-230
- DOI
  10.2355/tetsutohagane.TETSU-2018-072
- NAID
  130007585449
- ISSN
  0021-1575, 1883-2954
- Language
  Japanese
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Crystallographic selection rule for the propagation mode of microstructurally small fatigue crack in a laminated Ti-6Al-4V alloy: Roles of basal and pyramidal slips2019
- Author(s)
  Maenosono Akira、Koyama Motomichi、Tanaka Yoshihisa、Ri Shien、Wang Qinghua、Noguchi Hiroshi
- Journal Title
  
  International Journal of Fatigue
  
  Volume: 128 Pages: 105200-105200
- DOI
  10.1016/j.ijfatigue.2019.105200
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-18K13665
[Journal Article] Evolution of Quasi-Brittle Hydrogen-Assisted Damages in a Dual-Phase Steel2019
- Author(s)
  Kumamoto Tsubasa、Koyama Motomichi、Sato Koichi、Tsuzaki Kaneaki
- Journal Title
  
  MATERIALS TRANSACTIONS
  
  Volume: 60 Issue: 11 Pages: 2368-2377
- DOI
  10.2320/matertrans.MT-M2019196
- NAID
  130007733036
- ISSN
  1345-9678, 1347-5320
- Year and Date
  2019-11-01
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Growth Behavior of a Mechanically Long Fatigue Crack in an FeCrNiMnCo High Entropy Alloy: A Comparison with an Austenitic Stainless Steel2019
- Author(s)
  Mizumachi Shunsuke、Koyama Motomichi、Fukushima Yoshihiro、Tsuzaki Kaneaki
- Journal Title
  
  Tetsu-to-Hagane
  
  Volume: 105 Issue: 2 Pages: 215-221
- DOI
  10.2355/tetsutohagane.TETSU-2018-073
- NAID
  130007585383
- ISSN
  0021-1575, 1883-2954
- Language
  Japanese
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Grain refinement effect on hydrogen embrittlement resistance of an equiatomic CoCrFeMnNi high-entropy alloy2019
- Author(s)
  Koyama Motomichi、Ichii Kenshiro、Tsuzaki Kaneaki
- Journal Title
  
  International Journal of Hydrogen Energy
  
  Volume: 44 Issue: 31 Pages: 17163-17167
- DOI
  10.1016/j.ijhydene.2019.04.280
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Lowering Strain Rate Simultaneously Enhances Carbon- and Hydrogen-Induced Mechanical Degradation in an Fe-33Mn-1.1C Steel2019
- Author(s)
  Tugluca Ibrahim Burkay、Koyama Motomichi、Shimomura Yusaku、Bal Burak、Canadinc Demircan、Akiyama Eiji、Tsuzaki Kaneaki
- Journal Title
  
  Metallurgical and Materials Transactions A
  
  Volume: 50 Issue: 3 Pages: 1137-1141
- DOI
  10.1007/s11661-018-5080-7
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Microstructural mechanisms of fatigue crack non-propagation in TRIP-maraging steels2018
- Author(s)
  Zhang Z.、Koyama M.、Wang M.M.、Tsuzaki K.、Tasan C.C.、Noguchi H.
- Journal Title
  
  International Journal of Fatigue
  
  Volume: 113 Pages: 126-136
- DOI
  10.1016/j.ijfatigue.2018.04.013
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] ECCI Characterization of Dislocation Structures at a Non-propagating Fatigue Crack Tip: Toward Understanding the Effects of Mn-C and Cr-N Couples on Crack Growth Resistance2018
- Author(s)
  Habib Kishan、Koyama Motomichi、Tsuchiyama Toshihiro、Noguchi Hiroshi
- Journal Title
  
  Metallurgical and Materials Transactions A
  
  Volume: 50 Issue: 1 Pages: 426-435
- DOI
  10.1007/s11661-018-4972-x
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Surface orientation dependence of hydrogen flux in lenticular martensite of an Fe-Ni-C alloy clarified through in situ silver decoration technique2018
- Author(s)
  Koyama Motomichi、Yamasaki Daisuke、Tsuzaki Kaneaki
- Journal Title
  
  Materials Letters
  
  Volume: 228 Pages: 273-276
- DOI
  10.1016/j.matlet.2018.06.022
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Comparative study of hydrogen embrittlement in stable and metastable high-entropy alloys2018
- Author(s)
  Ichii Kenshiro、Koyama Motomichi、Tasan Cemal Cem、Tsuzaki Kaneaki
- Journal Title
  
  Scripta Materialia
  
  Volume: 150 Pages: 74-77
- DOI
  10.1016/j.scriptamat.2018.03.003
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] An unconventional hydrogen effect that suppresses thermal formation of the hcp phase in fcc steels2018
- Author(s)
  Koyama Motomichi、Hirata Kenji、Abe Yuji、Mitsuda Akihiro、Iikubo Satoshi、Tsuzaki Kaneaki
- Journal Title
  
  Scientific Reports
  
  Volume: 8 Issue: 1 Pages: 16136-16136
- DOI
  10.1038/s41598-018-34542-0
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Fatigue Behavior of Fe-Cr-Ni-based Metastable Austenitic Steels with an Identical Tensile Strength and Different Solute Carbon Contents2018
- Author(s)
  Ogawa Takuro、Koyama Motomichi、Nishikura Yuri、Tsuzaki Kaneaki、Noguchi Hiroshi
- Journal Title
  
  ISIJ International
  
  Volume: 58 Issue: 10 Pages: 1910-1919
- DOI
  10.2355/isijinternational.ISIJINT-2018-098
- NAID
  130007498318
- ISSN
  0915-1559, 1347-5460
- Year and Date
  2018-10-15
- Language
  English
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Quantification method for parameters affecting multi-scale roughness-induced fatigue crack closure2018
- Author(s)
  Mizoguchi Tomoki、Koyama Motomichi、Noguchi Hiroshi
- Journal Title
  
  Procedia Structural Integrity
  
  Volume: 13 Pages: 1071-1075
- DOI
  10.1016/j.prostr.2018.12.225
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] A new design concept for prevention of hydrogen-induced mechanical degradation: viewpoints of metastability and high entropy2018
- Author(s)
  Koyama Motomichi、Eguchi Takeshi、Ichii Kenshiro、Tasan Cemal Cem、Tsuzaki Kaneaki
- Journal Title
  
  Procedia Structural Integrity
  
  Volume: 13 Pages: 292-297
- DOI
  10.1016/j.prostr.2018.12.049
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Overview of Dynamic Strain Aging and Associated Phenomena in Fe–Mn–C Austenitic Steels2018
- Author(s)
  Koyama Motomichi、Sawaguchi Takahiro、Tsuzaki Kaneaki
- Journal Title
  
  ISIJ International
  
  Volume: 58 Issue: 8 Pages: 1383-1395
- DOI
  10.2355/isijinternational.ISIJINT-2018-237
- NAID
  130007436703
- ISSN
  0915-1559, 1347-5460
- Year and Date
  2018-08-15
- Language
  English
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] High-concentration carbon assists plasticity-driven hydrogen embrittlement in a Fe-high Mn steel with a relatively high stacking fault energy2018
- Author(s)
  Tugluca Ibrahim Burkay、Koyama Motomichi、Bal Burak、Canadinc Demircan、Akiyama Eiji、Tsuzaki Kaneaki
- Journal Title
  
  Materials Science and Engineering A
  
  Volume: 717 Pages: 78-84
- DOI
  10.1016/j.msea.2018.01.087
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] First-Principles Study on Hydrogen Diffusivity in BCC, FCC, and HCP Iron2018
- Author(s)
  Hirata K.、Iikubo S.、Koyama M.、Tsuzaki K.、Ohtani H.
- Journal Title
  
  Metallurgical and Materials Transactions A
  
  Volume: 49 Issue: 10 Pages: 5015-5022
- DOI
  10.1007/s11661-018-4815-9
- Peer Reviewed
- Data Source
  KAKENHI-ORGANIZER-18H05450, KAKENHI-PLANNED-18H05454, KAKENHI-PROJECT-16H06365
[Journal Article] Non-propagating fatigue cracks in austenitic steels with a micro-notch: Effects of dynamic strain aging, martensitic transformation, and microstructural hardness heterogeneity2018
- Author(s)
  Nishikura Yuri、Koyama Motomichi、Yamamura Yusuke、Ogawa Takuro、Tsuzaki Kaneaki、Noguchi Hiroshi
- Journal Title
  
  International Journal of Fatigue
  
  Volume: 113 Pages: 359-366
- DOI
  10.1016/j.ijfatigue.2018.04.027
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Temperature dependence of transgranular fatigue crack resistance in interstitial-free steel and Fe-C steels with supersaturated carbon: Effects of dynamic strain aging and dynamic precipitation2018
- Author(s)
  Li Bochuan、Koyama Motomichi、Sakurada Eisaku、Yoshimura Nobuyuki、Ushioda Kohsaku、Noguchi Hiroshi
- Journal Title
  
  International Journal of Fatigue
  
  Volume: 110 Pages: 1-9
- DOI
  10.1016/j.ijfatigue.2018.01.003
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Overview of Dynamic Strain Aging and Associated Phenomena in Fe-Mn-C Austenitic Steels2018
- Author(s)
  Koyama Motomichi、Sawaguchi Takahiro、Tsuzaki Kaneaki
- Journal Title
  
  Tetsu-to-Hagane
  
  Volume: 104 Issue: 4 Pages: 187-200
- DOI
  10.2355/tetsutohagane.TETSU-2017-089
- NAID
  130006594170
- ISSN
  0021-1575, 1883-2954
- Language
  Japanese
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Small fatigue crack growth in a high entropy alloy2018
- Author(s)
  Suzuki Kai、Koyama Motomichi、Noguchi Hiroshi
- Journal Title
  
  Procedia Structural Integrity
  
  Volume: 13 Pages: 1065-1070
- DOI
  10.1016/j.prostr.2018.12.224
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Proposal of fractographic analysis method coupled with EBSD and ECCI2018
- Author(s)
  Kaida Taketo、Koyama Motomichi、Hamada Shigeru、Noguchi Hiroshi、Sakurada Eisaku、Yokoi Tatsuo、Ushioda Kohsaku
- Journal Title
  
  Procedia Structural Integrity
  
  Volume: 13 Pages: 1076-1081
- DOI
  10.1016/j.prostr.2018.12.226
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Proposal and verification of novel fatigue crack propagation simulation method by finite element method.2018
- Author(s)
  Sano Temma、Sasaki Daisuke、Koyama Motomichi、Hamada Shigeru、Noguchi Hiroshi
- Journal Title
  
  Procedia Structural Integrity
  
  Volume: 13 Pages: 1154-1158
- DOI
  10.1016/j.prostr.2018.12.240
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Localized Plasticity and Associated Cracking in Stable and Metastable High-Entropy Alloys Pre-Charged with Hydrogen2018
- Author(s)
  Ichii Kenshiro、Koyama Motomichi、Tasan Cemal Cem、Tsuzaki Kaneaki
- Journal Title
  
  Procedia Structural Integrity
  
  Volume: 13 Pages: 716-721
- DOI
  10.1016/j.prostr.2018.12.119
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Fatigue Crack Growth Behavior and Associated Microstructure in a Metastable High-Entropy Alloy2018
- Author(s)
  Eguchi Takeshi、Koyama Motomichi、Fukushima Yoshihiro、Tasan Cemal Cem、Tsuzaki Kaneaki
- Journal Title
  
  Procedia Structural Integrity
  
  Volume: 13 Pages: 831-836
- DOI
  10.1016/j.prostr.2018.12.159
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Optical Microscopy-Based Damage Quantification: an Example of Cryogenic Deformation of a Dual-Phase Steel2018
- Author(s)
  N. Uehata, M. Koyama, S. Takagi, K. Tsuzaki
- Journal Title
  
  ISIJ International
  
  Volume: 58 Issue: 1 Pages: 179-185
- DOI
  10.2355/isijinternational.ISIJINT-2017-468
- NAID
  130007340332
- ISSN
  0915-1559, 1347-5460
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Split and Shift of ε-martensite Peak in an X-ray Diffraction Profile during Hydrogen Desorption: A Geometric Effect of Atomic Sequence2018
- Author(s)
 Koyama Motomichi、Abe Yuji、Tsuzaki Kaneaki
- Journal Title
 
 ISIJ International
 
 Volume: 58 Issue: 9 Pages: 1745-1747
- DOI
 10.2355/isijinternational.ISIJINT-2018-260
- NAID
 130007484911
- ISSN
 0915-1559, 1347-5460
- Year and Date
 2018-09-15
- Language
 English
- Peer Reviewed
- Data Source
 KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Microstructural damage evolution and arrest in binary Fe-high-Mn alloys with different deformation temperatures2018
- Author(s)
  Koyama Motomichi、Kaneko Takahiro、Sawaguchi Takahiro、Tsuzaki Kaneaki
- Journal Title
  
  International Journal of Fracture
  
  Volume: 213 Issue: 2 Pages: 193-206
- DOI
  10.1007/s10704-018-0307-6
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17H04956
[Journal Article] Hydrogen-assisted failure in a bimodal twinning-induced plasticity steel: Delamination events and damage evolution2018
- Author(s)
  Mohammadi Abbas、Koyama Motomichi、Gerstein Gregory、Maier Hans J?rgen、Noguchi Hiroshi
- Journal Title
  
  International Journal of Hydrogen Energy
  
  Volume: 43 Issue: 4 Pages: 2492-2502
- DOI
  10.1016/j.ijhydene.2017.11.177
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H04956
[Journal Article] Effect of Si on temperature dependence of non-propagation limit of small fatigue crack in a Fe-C alloy2018
- Author(s)
  Kishida Kohei、Koyama Motomichi、Yoshimura Nobuyuki、Sakurada Eisaku、Yokoi Tatsuo、Ushioda Kohsaku、Tsuzaki Kaneaki、Noguchi Hiroshi
- Journal Title
  
  Procedia Structural Integrity
  
  Volume: 13 Pages: 1032-1036
- DOI
  10.1016/j.prostr.2018.12.192
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Strain Rate Sensitivity of Microstructural Damage Evolution in a Dual-Phase Steel Pre-Charged with Hydrogen2018
- Author(s)
  Kumamoto Tsubasa、Koyama Motomichi、Tsuzaki Kaneaki
- Journal Title
  
  Procedia Structural Integrity
  
  Volume: 13 Pages: 710-715
- DOI
  10.1016/j.prostr.2018.12.118
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Investigation on Mode I Propagation Behavior of Fatigue Crack in Precipitation-Hardened Aluminum Alloy with Different Mg Content2017
- Author(s)
  Anis Samsol Faizal、Koyama Motomichi、Noguchi Hiroshi
- Journal Title
  
  Materials Science Forum
  
  Volume: 889 Pages: 143-147
- DOI
  10.4028/www.scientific.net/msf.889.143
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Comparative study on small fatigue crack propagation between Fe-30Mn-3Si-3Al and Fe-23Mn-0.5C twinning-induced plasticity steels: Aspects of non-propagation of small fatigue cracks2017
- Author(s)
  Motomichi Koyama, Yusuke Yamamura, Rinqing Che, Takahiro Sawaguchi, Kaneaki Tsuzaki, Hiroshi Noguchi
- Journal Title
  
  International Journal of Fatigue
  
  Volume: 94 Pages: 1-5
- DOI
  10.1016/j.ijfatigue.2016.09.003
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Effects of ε-martensitic transformation on crack tip deformation, plastic damage accumulation, and slip plane cracking associated with low-cycle fatigue crack growth2017
- Author(s)
  Ju Yun-Byum、Koyama Motomichi、Sawaguchi Takahiro、Tsuzaki Kaneaki、Noguchi Hiroshi
- Journal Title
  
  International Journal of Fatigue
  
  Volume: 103 Pages: 533-545
- DOI
  10.1016/j.ijfatigue.2017.06.040
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Interfacial hydrogen localization in austenite/martensite dual-phase steel visualized through optimized silver decoration and scanning Kelvin probe force microscopy2017
- Author(s)
  T. Nagashima, M. Koyama, A. Bashir, M. Rohwerder, C.C. Tasan, E. Akiyama, D. Raabe, K. Tsuzaki
- Journal Title
  
  Materials and Corrosion
  
  Volume: 68 Issue: 3 Pages: 306-310
- DOI
  10.1002/maco.201609104
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K18235
[Journal Article] Reply to comments on the paper “In situ observations of silver-decoration evolution under hydrogen permeation: Effects of grain boundary misorientation on hydrogen flux in pure iron” by Gavriljuk and Teus2017
- Author(s)
  Koyama Motomichi、Yamasaki Daisuke、Tsuzaki Kaneaki
- Journal Title
  
  Scripta Materialia
  
  Volume: 140 Pages: 91-92
- DOI
  10.1016/j.scriptamat.2017.07.019
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Visualization of dislocations through electron channeling contrast imaging at fatigue crack tip, interacting with pre-existing dislocations2017
- Author(s)
  Habib Kishan、Koyama Motomichi、Tsuchiyama Toshihiro、Noguchi Hiroshi
- Journal Title
  
  Materials Research Letters
  
  Volume: 6 Issue: 1 Pages: 61-66
- DOI
  10.1080/21663831.2017.1392370
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Overview of hydrogen embrittlement in high-Mn steels2017
- Author(s)
  Motomichi Koyama, Eiji Akiyama, Young-Kook Lee, Dierk Raabe, Kaneaki Tsuzaki
- Journal Title
  
  International journal of hydrogen energy
  
  Volume: NA Issue: 17 Pages: 1-18
- DOI
  10.1016/j.ijhydene.2017.02.214
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-15K18235
[Journal Article] Micrographic Digital Image Correlation Coupled with Microlithography: Case Study of Strain Localization and Subsequent Cracking at an FIB Notch Tip in a Laminated Ti-6Al-4V Alloy2017
- Author(s)
  Koyama M.、Tanaka Y.、Tsuzaki K.
- Journal Title
  
  Experimental Mechanics
  
  Volume: 58 Issue: 2 Pages: 381-386
- DOI
  10.1007/s11340-017-0336-5
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Hydrogen desorption and cracking associated with martensitic transformation in Fe-Cr-Ni-Based austenitic steels with different carbon contents2017
- Author(s)
  Koyama Motomichi、Ogawa Takuro、Yan Dingshun、Matsumoto Yuya、Tasan Cemal Cem、Takai Kenichi、Tsuzaki Kaneaki
- Journal Title
  
  International Journal of Hydrogen Energy
  
  Volume: 42 Issue: 42 Pages: 26423-26435
- DOI
  10.1016/j.ijhydene.2017.08.209
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] In situ observations of silver-decoration evolution under hydrogen permeation: Effects of grain boundary misorientation on hydrogen flux in pure iron2017
- Author(s)
  Motomichi Koyama, Daisuke Yamasaki, Tatsuya Nagashima, Cemal Cem Tasan, Kaneaki Tsuzaki
- Journal Title
  
  Scripta Materialia
  
  Volume: 129 Pages: 48-51
- DOI
  10.1016/j.scriptamat.2016.10.027
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-15K18235
[Journal Article] Recent progress in microstructural hydrogen mapping in steels: quantification, kinetic analysis, and multi-scale characterisation2017
- Author(s)
  Motomichi Koyama, Michael Rohwerder, Cemal Cem Tasan, Asif Bashir, Eiji Akiyama, Kenichi Takai, Dierk Raabe, Kaneaki Tsuzaki
- Journal Title
  
  MATERIALS SCIENCE AND TECHNOLOGY,
  
  Volume: NA Issue: 13 Pages: 1-16
- DOI
  10.1080/02670836.2017.1299276
- Peer Reviewed / Acknowledgement Compliant / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-15K18235
[Journal Article] Bone-like crack resistance in hierarchical metastable nanolaminate steels2017
- Author(s)
  Motomichi Koyama, Zhao Zhang, Meimei Wang, Dirk Ponge, Dierk Raabe, Kaneaki Tsuzaki, Hiroshi Noguchi, Cemal Cem Tasan
- Journal Title
  
  SCIENCE
  
  Volume: 355 Issue: 6329 Pages: 1055-1057
- DOI
  10.1126/science.aal2766
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-15K18235
[Journal Article] Fatigue crack non-propagation assisted by nitrogen-enhanced dislocation planarity in austenitic stainless steels2017
- Author(s)
  Habib Kishan、Koyama Motomichi、Tsuchiyama Toshihiro、Noguchi Hiroshi
- Journal Title
  
  International Journal of Fatigue
  
  Volume: 104 Pages: 158-170
- DOI
  10.1016/j.ijfatigue.2017.07.019
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365
[Journal Article] Room-temperature blue brittleness of Fe-Mn-C austenitic steels2017
- Author(s)
  Koyama Motomichi、Shimomura Yusaku、Chiba Aya、Akiyama Eiji、Tsuzaki Kaneaki
- Journal Title
  
  Scripta Materialia
  
  Volume: 141 Pages: 20-23
- DOI
  10.1016/j.scriptamat.2017.07.017
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16H06365, KAKENHI-PROJECT-17H04956
[Journal Article] Hydrogen embrittlement susceptibility in Fe-Mn binary alloys with high Mn contents: effects of stable and metastable ε-martensite, and Mn concentration2016
- Author(s)
  M. Koyama, S. Okazaki, T. Sawaguchi, K. Tsuzaki
- Journal Title
  
  Metallurgical Materials Transactions A
  
  Volume: In press Issue: 6 Pages: 2656-2673
- DOI
  10.1007/s11661-016-3431-9
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-15K18235
[Journal Article] Effect of strain rate on hydrogen embrittlement susceptibility of twinning-induced plasticity steel pre-charged with high-pressure hydrogen gas2016
- Author(s)
  B. Bal, M. Koyama, G. Gerstein, H.J. Maier, K. Tsuzaki
- Journal Title
  
  International Journal of Hydrogen Energy
  
  Volume: 41 Issue: 34 Pages: 15362-15372
- DOI
  10.1016/j.ijhydene.2016.06.259
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K18235
[Journal Article] Combined Multi-scale Analyses on Strain/Damage/Microstructure in Steel: Example of Damage Evolution Associated with ε-martensitic Transformation2016
- Author(s)
 T. Kaneko, M. Koyama, T. Fujisawa, K. Tsuzaki
- Journal Title
 
 ISIJ International
 
 Volume: 56 Issue: 11 Pages: 2037-2046
- DOI
 10.2355/isijinternational.ISIJINT-2016-272
- NAID
 130005280990
- ISSN
 0915-1559, 1347-5460
- Language
 English
- Peer Reviewed / Acknowledgement Compliant
- Data Source
 KAKENHI-PROJECT-15K18235
[Journal Article] Combined Multi-scale Analyses on Strain/Damage/Microstructure in Steel: Example of Damage Evolution Associated with ε-martensitic Transformation2016
- Author(s)
  金子貴裕, 小山元道, 藤澤友也，津﨑兼彰
- Journal Title
  
  Tetsu-to-Hagane
  
  Volume: 102 Issue: 5 Pages: 227-236
- DOI
  10.2355/tetsutohagane.TETSU-2015-081
- NAID
  130005148529
- ISSN
  0021-1575, 1883-2954
- Language
  Japanese
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K18235
[Journal Article] Hydrogen-assisted damage in austenite/martensite dual-phase steel2016
- Author(s)
  M. Koyama, C.C. Tasan, T. Nagashima, E. Akiyama, D. Raabe, K. Tsuzaki
- Journal Title
  
  Philosophical Magazine Letters
  
  Volume: 96 Issue: 1 Pages: 9-18
- DOI
  10.1080/09500839.2015.1130275
- Peer Reviewed / Acknowledgement Compliant / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K18235
[Journal Article] Importance of crack-propagation-induced ε-martensite in strain-controlled low-cycle fatigue of high-Mn austenitic steel2015
- Author(s)
  Huichao Li, Motomichi Koyama, Takahiro Sawaguchi, Kaneaki Tsuzaki, Hiroshi Noguchi
- Journal Title
  
  Philosophical Magazine Letters
  
  Volume: 95 Issue: 6 Pages: 303-311
- DOI
  10.1080/09500839.2015.1052029
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-25249099
[Journal Article] Positive and negative effects of hydrogen on tensile behavior in polycrystalline Fe-30Mn-(6-x)Si-xAl austenitic alloys2015
- Author(s)
  Kaneaki Tsuzaki, Koki Fukuda, Motomichi Koyama, Hisao Matsunaga
- Journal Title
  
  Scripta Materialia
  
  Volume: 105 Pages: 54-57
- DOI
  10.1016/j.scriptamat.2015.05.007
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-25249099
[Journal Article] Effects of Si on Tensile Properties Associated with Deformation-Induced ε-Martensitic Transformation in High Mn Austenitic Alloys2015
- Author(s)
  Motomichi Koyama, Takahiro Sawaguchi, Kaneaki Tsuzaki
- Journal Title
  
  MATERIALS TRANSACTIONS
  
  Volume: 56 Issue: 6 Pages: 819-825
- DOI
  10.2320/matertrans.M2015042
- NAID
  130005072142
- ISSN
  1345-9678, 1347-5320
- Language
  English
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-25249099
[Journal Article] 高Mn オーステナイト合金における引張特性に及ぼす Si の効果：変形誘起ε マルテンサイト変態に関連して2015
- Author(s)
  小山元道, 澤口孝宏, 津﨑兼彰
- Journal Title
  
  日本金属学会誌
  
  Volume: 79 Pages: 657-663
- NAID
  130005109978
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-25249099
[Presentation] Alloy design for hydrogen-resistant high-strength metals2022
- Author(s)
  Motomichi Koyama
- Organizer
  2022 Alloy Design Workshop
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H02457
[Presentation] Acceleration mechanism of hydrogen-assisted fatigue crack growth in an equiatomic CoCrFeMoNi high-entropy alloy2022
- Author(s)
  M. Koyama, S. Mizumachi, E. Akiyama, K. Tsuzaki
- Organizer
  日本金属学会
- Invited
- Data Source
  KAKENHI-PROJECT-20H02457
[Presentation] Multi-scale in Situ Characterization of Micro-deformation During Luders Band Propagation in a Medium Mn Steel2022
- Author(s)
  M. Koyama, R.S. Varanasi, T. Hojo, T. Yamashita, S. Morooka, T. Kawasaki, S. Harjo
- Organizer
  The 7th International Conference on Electronic Materials and Nanotechnology for Green Environment
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H02457
[Presentation] Hydrogen effects on micro-damage arrest in multiphase steels2021
- Author(s)
  M. Koyama, M.Y. Maeda, C. Hao, O.M. Cintho, K. Tsuzaki, T. Hojo, E. Akiyama
- Organizer
  Asia steel 2021
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20H02457
[Presentation] 固溶炭素を含むフェライト鋼の疲労限およびコーキシング効果に及ぼすMn 添加の影響2021
- Author(s)
  内田悠翠，小山元道，福島良博，津﨑兼彰
- Organizer
  日本鉄鋼協会第181回春季講演大会討論会「塑性を起源とする損傷発達の理解とその克服・利活用」
- Invited
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] 低積層欠陥エネルギー鋼における水素脆化影響因子2021
- Author(s)
  小山元道
- Organizer
  日本鉄鋼協会第181回春季講演大会討論会「塑性を起源とする損傷発達の理解とその克服・利活用」
- Invited
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Ti-6Al-4V合金におけるDwell fatigue特性の改善に向けた疲労き裂進展加速因子の解明2020
- Author(s)
  青木佑真、小山元道、田中將己、津﨑兼彰
- Organizer
  日本金属学会春期講演大会
- Invited
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] 異なる初期き裂長さを有するTRIP-マルエージング鋼の疲労き裂進展挙動2020
- Author(s)
  小山元道、溝口友樹、張昭、野口博司
- Organizer
  日本鉄鋼協会春季講演大会
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] 過飽和固溶炭素を含むフェライト鋼の疲労特性におよぼすMnの影響2019
- Author(s)
  内田悠翠，小山元道，福島良博，津﨑兼彰
- Organizer
  日本鉄鋼協会秋季講演大会
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] 微小疲労き裂の発生と伝播に対するプラナーすべりの影響：等原子比高エントロピー合金 Fe20Cr20Ni20Mn20Co の例2019
- Author(s)
  鈴木魁，小山元道，野口博司
- Organizer
  日本機械学会M&M2019材料力学カンファレンス
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Fe-C 合金の微小疲労き裂停留限界の温度依存性に対するSi の効果2019
- Author(s)
  岸田浩平，小山元道，吉村信幸，桜田栄作，横井龍雄，潮田浩作，野口博司
- Organizer
  日本機械学会M&M2019材料力学カンファレンス
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] EBSD/ECCIとDICを用いた内部塑性ひずみ分布の測定2019
- Author(s)
  柿本亮平，小山元道，津﨑兼彰
- Organizer
  日本金属学会秋期講演大会
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Designing Hydrogen-Resistant Steels: Effects of Phase Stability, Configurational Entropy and Grain Refinement2019
- Author(s)
  M. Koyama
- Organizer
  Hydrogen-Metal System Gordon research conference (GRC), Barcelona, Spain
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Microstructure evolution beneath fatigue fracture surface2019
- Author(s)
  M. Koyama, T. Eguchi, S. Mizumachi, C.C. Tasan, K. Tsuzaki
- Organizer
  International Conference High-entropy materials
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H04956
[Presentation] 水素脆化におけるき裂近傍のECCI解析の有効性2019
- Author(s)
  小山元道
- Organizer
  日本鉄鋼協会秋季講演大会
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] 疲労破面直下の塑性ひずみを用いた荷重推定法の提案2019
- Author(s)
  甲斐田健人, 小山元道, 濱田繁, 桜田栄作, 横井龍雄, 野口博司
- Organizer
  日本機械学会M&M2019材料力学カンファレンス
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Dislocation Motion Observation using In-situ ECCI in a Bulk FCC Alloy2019
- Author(s)
  Keiichiro NAKAFUJI, Motomichi KOYAMA, Kaneaki Tsuzaki
- Organizer
  European Congress and Exhibition on Advanced Materials and Processes 2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] 単結晶Coの微小CT試験片を用いた転位運動と双晶変形のその場ECC観察2019
- Author(s)
  中藤敬一朗，小山元道，津﨑兼彰
- Organizer
  日本機械学会M&M2019材料力学カンファレンス
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] A new concept for prevention of hydrogen-induced mechanical degradation: viewpoints of metastability and high entropy2019
- Author(s)
  M. Koyama, T. Eguchi, K. Ichii, C.C. Tasan, K. Tsuzaki
- Organizer
  European Conference on Fracture
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H04956
[Presentation] 過飽和固溶炭素を含むフェライト鋼の疲労き裂発生挙動および疲労特性におよぼすMnの影響2019
- Author(s)
  内田悠翠，小山元道，福島良博，津﨑兼彰
- Organizer
  日本機械学会M&M2019材料力学カンファレンス
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Mn effects on fatigue properties in ferritic steel with supersaturated carbon2019
- Author(s)
  Yusui UCHIDA, Motomichi KOYAMA, Yoshihiro FUKUSHIMA, Kaneaki TSUZAKI
- Organizer
  European Congress and Exhibition on Advanced Materials and Processes 2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] 微小疲労き裂近傍の組織観察例と耐疲労鋼創製の指針2019
- Author(s)
  小山元道
- Organizer
  日本機械学会M&M2019材料力学カンファレンス
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] In-situ SEM-ECCI analysis of martensitic transformation in ferrous alloy2019
- Author(s)
  Kaneaki TSUZAKI, Misaki SEO, Ryosuke SASAKI, Keiichiro NAKAFUJI, Motomichi KOYAMA
- Organizer
  European Congress and Exhibition on Advanced Materials and Processes 2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Ti-6Al-4V合金のDwell疲労特性改善に向けた疲労き裂進展加速因子の解明2019
- Author(s)
  青木佑真，小山元道，田中將己，津﨑兼彰
- Organizer
  日本金属学会秋期講演大会
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Designing Hydrogen-Resistant Steels: Effects of Phase Stability, Configurational Entropy and Grain Refinement2019
- Author(s)
  M. Koyama
- Organizer
  Hydrogen-Metal System Gordon research conference (GRC)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H04956
[Presentation] 水素チャージした純Niにおける塑性ひずみ発達および転位組織2019
- Author(s)
  柿本亮平，小山元道，小林憲司，津﨑兼彰
- Organizer
  日本機械学会M&M2019材料力学カンファレンス
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] 引張荷重負荷下のオーステナイト鋼における残留応力と転位運動のその場SEM-ECC観察2019
- Author(s)
  中藤敬一朗，小山元道，津﨑兼彰
- Organizer
  日本鉄鋼協会秋季講演大会
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Hydrogen embrittlement of advanced stable austenitic steels: examples of high-nitrogen steel and high-entropy alloy2019
- Author(s)
  M. Koyama
- Organizer
  International Conference “Corrosion in the Oil & Gas Industry”- Corrosion Oil&Gas 2019, Saint Petersburg, Russia.
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Visualization of hydrogen release from lath martensite by silver decoration technique2019
- Author(s)
  Kazushi OIE, Motomichi KOYAMA, Eiji AKIYAMA, Toyoto SATO, Yoshihiro FUKUSHIMA, Kaneaki, TSUZAKI
- Organizer
  European Congress and Exhibition on Advanced Materials and Processes 2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] 水素チャージしたオーステナイトより変態したラスマルテンサイトからの水素放出の可視化2019
- Author(s)
  尾家一志，小山元道，佐藤豊人，津﨑兼彰
- Organizer
  日本金属学会秋期講演大会
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Ti-6Al-4V合金のDwell fatigue効果を考慮した疲労寿命設計に向けたき裂進展加速機構の解明2019
- Author(s)
  青木佑真，小山元道，田中將己，津﨑兼彰
- Organizer
  日本機械学会M&M2019材料力学カンファレンス
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Micro-mechanisms of dislocation-driven crack resistance clarified through in situ ECCI2019
- Author(s)
  M. Koyama
- Organizer
  Alloy Design Workshop 2019
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H04956
[Presentation] 安定FCC高エントロピー合金の水素による疲労き裂進展加速と進展経路変化2019
- Author(s)
  水町俊介，小山元道，福島良博，津﨑兼彰
- Organizer
  日本機械学会M&M2019材料力学カンファレンス
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Variation in striation spacing during dwell fatigue in Ti-6Al-4V alloy2019
- Author(s)
  Yuma AOKI, Motomichi KOYAMA, Masaki TANAKA, Kaneaki TSUZAKI
- Organizer
  European Congress and Exhibition on Advanced Materials and Processes 2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] 水素脆化におけるき裂伝播の新たなモデルの提案～Ni20Cr に着目して～2019
- Author(s)
  北原明日香, 小山元道, 小林憲司, 濱田繁, 津﨑兼彰, 野口博司
- Organizer
  日本機械学会M&M2019材料力学カンファレンス
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Fatigue Crack Propagation Behavior and Associated Deformation Microstructure in FCC High-Entropy Alloy2019
- Author(s)
  Shunsuke MIZUMACHI, Motomichi KOYAMA, Yoshihiro FUKUSHIMA, Kaneaki Tsuzaki
- Organizer
  European Congress and Exhibition on Advanced Materials and Processes 2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Hydrogen embrittlement of advanced stable austenitic steels: examples of high-nitrogen steel and high-entropy alloy2019
- Author(s)
  M. Koyama
- Organizer
  International Conference “Corrosion in the Oil & Gas Industry”- Corrosion Oil&Gas 2019
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H04956
[Presentation] 準安定ラメラ組織を有する鋼の高ΔK 領域かつ長いき裂での疲労き裂閉口現象2019
- Author(s)
  溝口友樹，小山元道，野口博司
- Organizer
  日本機械学会M&M2019材料力学カンファレンス
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Determination of internal plastic strain distribution in notched FCC metal using DIC and EBSD2019
- Author(s)
  Ryohei KAKIMOTO, Motomichi KOYAMA, Kaneaki TSUZAKI
- Organizer
  European Congress and Exhibition on Advanced Materials and Processes 2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Fatigue Crack Growth Behavior and Associated Microstructure in a Metastable High-Entropy Alloy2018
- Author(s)
  Takeshi Eguchi, Motomichi Koyama, Yoshihiro Fukushima, Cemal Cem Tasan and Kaneaki Tsuzaki
- Organizer
  22nd European Conference on Fracture (ECF22)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] ひずみ・微視組織・き裂/ボイドのマルチスケール観察による鉄鋼の損傷発達機構解析2018
- Author(s)
  金子貴裕、小山元道、藤澤友也、津﨑兼彰
- Organizer
  日本鉄鋼協会
- Invited
- Data Source
  KAKENHI-PROJECT-17H04956
[Presentation] Plasticity-Driven Hydrogen Embrittlement in Stable and Metastable High Entropy Alloys2018
- Author(s)
  Kenshiro Ichii, Motomichi Koyama, Cemal Cem Tasan, Kaneaki Tsuzaki
- Organizer
  6th International Conference on Advanced Steels (ICAS)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] 疲労変形解析に向けた引張荷重負荷除荷時のその場ECCI観察2018
- Author(s)
  中藤敬一朗、小山元道、津崎兼彰
- Organizer
  日本機械学会　M&M2018材料力学カンファレンス
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Strain Rate Sensitivity of Microstructural Damage Evolution in a Dual-Phase Steel Pre-Charged with Hydrogen2018
- Author(s)
  Tsubasa Kumamoto, Motomichi Koyama and Kaneaki Tsuzaki
- Organizer
  22nd European Conference on Fracture (ECF22)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Localized Plasticity and Associated Cracking in Stable and Metastable High-Entropy Alloys Pre-Charged with Hydrogen 3332018
- Author(s)
  Kenshiro Ichii, Motomichi Koyama, Cemal Cem Tasan and Kaneaki Tsuzaki
- Organizer
  22nd European Conference on Fracture (ECF22)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] オーステナイト鋼の疲労限改善に高濃度炭素は必要か：ひずみ時効とひずみ集中2018
- Author(s)
  小山元道
- Organizer
  日本機械学会　M&M2018材料力学カンファレンス
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] “Metallurgical aspects of fatigue crack growth resistance in steels: How can we improve it through microstructure control?”2018
- Author(s)
  K.Tsuzaki, M. Koyama, H.Noguchi.
- Organizer
  18th International Conference on Strength of Materials (ICSMA18)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] ε-Martensite Plasticity Associated with Fatigue Crack Growth in a Metastable High-Entropy Alloy2018
- Author(s)
  Takeshi Eguchi, Motomichi Koyama, Yoshihiro Fukushima, Cemal Cem Tasan, Kaneaki Tsuzaki
- Organizer
  6th International Conference on Advanced Steels (ICAS)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Strain Rate Effects on Damage Tolerance in a Hydrogen-Charged Dual-Phase Steel :Crack Initiation, Arrest, and Growth to Failure2018
- Author(s)
  Tsubasa Kumamoto, Motomichi Koyama, Kaneaki Tsuzaki
- Organizer
  6th International Conference on Advanced Steels (ICAS)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Fe-Mn-Cフェライト鋼の疲労限度およびコーキシング効果：Mn-C対の作用に着目して2018
- Author(s)
  内田悠翠、小山元道、福島良博、津崎兼彰
- Organizer
  日本機械学会　M&M2018材料力学カンファレンス
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Effects of Si on temperature dependence of non-propagation limit of small fatigue crack in a Fe-C alloy2018
- Author(s)
  Kohei Kishida, Kohei Kishida, Motomichi Koyama, Nobuyuki Yoshimura, Eisaku Sakurada, Tatsuo Yokoi, Kohsaku Ushioda, Kaneaki Tsuzaki, H. Noguchi
- Organizer
  22nd European Conference on Fracture (ECF22)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] "A new concept for prevention of hydrogen-induced mechanical degradation: viewpoints of metastability and high entropy"2018
- Author(s)
  M. Koyama
- Organizer
  22nd European Conference on Fracture (ECF22)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] EBSD/ECCIとデジタル画像相関法を併用した塑性ひずみ発達測定法の提案：fcc Ni切欠材の例2018
- Author(s)
  柿本亮平、小山元道、津崎兼彰
- Organizer
  日本機械学会　M&M2018材料力学カンファレンス
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] FCC系高エントロピー合金における力学的に長い疲労き裂の進展特性2018
- Author(s)
  水町俊介、小山元道、福島良博、津崎兼彰
- Organizer
  日本機械学会　M&M2018材料力学カンファレンス
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] "Microstructure evolution beneath fatigue fracture surface"2018
- Author(s)
  M. Koyama, T. Eguchi, S. Mizumachi, C.C. Tasan, K. Tsuzaki
- Organizer
  International Conference High-Entropy Materials (ICHEM)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] オーステナイト鋼における変形誘起マルテンサイト変態と引張特性におよぼす固溶水素の影響2017
- Author(s)
  寺尾夏生, 小山元道, 津﨑兼彰
- Organizer
  日本鉄鋼協会第174回秋季講演大会
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Microstructural factors enhancing fatigue crack resistance: aspects of metastability and nano-laminates2017
- Author(s)
  M. Koyama
- Organizer
  International Symposium on Innovative Process Design for Structural Materials
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] DP鋼における水素助長損傷発達におよぼすひずみ速度の影響2017
- Author(s)
  熊本翼、小山元道、津﨑兼彰
- Organizer
  日本鉄鋼協会第174回秋季講演大会
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Visualization of Hydrogen Distribution in Steels by Utilizing In-situ Silver Decoration Technique2017
- Author(s)
  Daisuke YAMASAKI, Motomichi KOYAMA, Kaneaki TSUZAKI
- Organizer
  European Congress and Exhibition on Advanced Materials and Processes 2017 (EUROMAT 2017)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Effects of Solute Hydrogen on Deformation-induced HCP and BCC Martensite in Austenitic Steels2017
- Author(s)
  Natsuki TERAO, Motomichi KOYAMA, Kaneaki TSUZAKI
- Organizer
  European Congress and Exhibition on Advanced Materials and Processes 2017 (EUROMAT 2017)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] 微視的水素分布の可視化技術の現況：定量化、空間分解能ならびに時間分解能2017
- Author(s)
  小山元道
- Organizer
  日本金属学会　水素エネルギー材料に関する講演会
- Invited
- Data Source
  KAKENHI-PROJECT-17H04956
[Presentation] Arrest of Hydrogen-assisted Surface Cracking in hcp-TRIP High-Mn Austenitic Steels2017
- Author(s)
  Daiju Taniuchi, Motomichi Koyama, Kaneaki Tsuzaki
- Organizer
  European Congress and Exhibition on Advanced Materials and Processes (EUROMAT 2017)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Hydrogen embrittlement of binary high Mn austenitic steels2017
- Author(s)
  M. Koyama, T. Sawaguchi, K. Tsuzaki
- Organizer
  14th international conference on fracture (ICF-14)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] 鉄鋼材料における水素可視化技術開発状況：水素分布の定量化、経時変化観察、マルチスケール観察に向けて2017
- Author(s)
  小山元道
- Organizer
  材料中の水素機能解析技術第190委員会
- Invited
- Data Source
  KAKENHI-PROJECT-17H04956
[Presentation] ハイエントロピー合金の室温での疲労き裂進展特性に及ぼす相安定性の影響2017
- Author(s)
  江口丈、小山元道、福島良博、津﨑兼彰
- Organizer
  日本鉄鋼協会第174回秋季講演大会
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] 鉄鋼材料の疲労き裂進展に及ぼす固溶元素の役割”日本金属学会2017
- Author(s)
  小山元道
- Organizer
  日本金属学会
- Place of Presentation
  東京理科大学
- Invited
- Data Source
  KAKENHI-PROJECT-15K18235
[Presentation] Microstructural factors enhancing fatigue crack resistance: aspects of metastability and nano-laminates2017
- Author(s)
  Motomichi Koyama
- Organizer
  International Symposium on Innovative Process Design for Structural Material
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H04956
[Presentation] HYDROGEN EMBRITTLEMENT OF BINARY HIGH MN AUSTENITIC STEELS2017
- Author(s)
  Motomichi Koyama, Takahiro Sawaguchi, Kaneaki Tsuzaki
- Organizer
  International Conference on Fracture
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H04956
[Presentation] 微視的水素分布の可視化技術の現況：定量化、空間分解能ならびに時間分解能2017
- Author(s)
  小山元道
- Organizer
  日本金属学会水素エネルギー材料に関する講演会
- Invited
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] 鉄鋼材料における水素可視化技術開発状況：水素分布の定量化、経時変化観察、マルチスケール観察に向けて2017
- Author(s)
  小山元道
- Organizer
  材料中の水素機能解析技術第190委員会第二回総会
- Invited
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] 銀デコレーション法による多結晶 BCC 鉄および FCC/BCC 二相鋼の水素拡散経路の観察2017
- Author(s)
  山﨑大輔, 小山元道, 津﨑兼彰
- Organizer
  日本鉄鋼協会第174回秋季講演大会
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] 鉄鋼材料の疲労き裂進展に及ぼす固溶元素の役割2017
- Author(s)
  小山元道
- Organizer
  日本金属学会春期講演大会
- Place of Presentation
  首都大学東京南大沢キャンパス
- Year and Date
  2017-03-15
- Invited
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Microstructrure design for enhancing fatigue crack closure: roles of phase stability and second phase morphology2017
- Author(s)
  M. Koyama, Z. Zhang. M.M. Wang, D. Ponge, D. Raabe, K. Tsuzaki, H. Noguchi
- Organizer
  KIM-JIM Symposium
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] 準安定系ハイエントロピー合金における引張特性の変形温度依存性2017
- Author(s)
  一井謙史郎、小山元道、津﨑兼彰
- Organizer
  日本鉄鋼協会第174回秋季講演大会
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] 鉄鋼水素脆化における未解決課題：γ相安定性の影響とマルテンサイト変態時の水素分配2017
- Author(s)
  津﨑兼彰、小山元道
- Organizer
  日本鉄鋼協会・材料の組織と特性部会シンポジウム「鉄鋼中の軽元素－古典的課題への新しいアプローチ」
- Place of Presentation
  首都大学東京南大沢キャンパス
- Invited
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] その場銀デコレーション法による水素流束マッピングとその結晶方位依存性2017
- Author(s)
  小山元道、山﨑大輔、津﨑兼彰
- Organizer
  日本鉄鋼協会秋期講演大会
- Data Source
  KAKENHI-PROJECT-16H06365
[Presentation] Multi-scale analysis on hydrogen-assisted damage evolution in fe-ni-c austenite/martensite dual phase steel2016
- Author(s)
  Motomichi Koyama, Cemal Cem Tasan, Asif Bashir, Tatsuya Nagashima, Michael Rohwerder, Eiji Akiyama, Dierk Raabe and Kaneaki Tsuzak
- Organizer
  International Symposium on Plasticity and Its Current Applications 2016
- Place of Presentation
  Keauhou bay, Hawaii, USA
- Year and Date
  2016-01-05
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K18235
[Presentation] マルテンサイトと微小損傷発達：εマルテンサイトを例題に2016
- Author(s)
  小山元道
- Organizer
  日本金属学会
- Place of Presentation
  大阪大学
- Invited
- Data Source
  KAKENHI-PROJECT-15K18235
[Presentation] Hydrogen Effects in High Mn Steels with Martensite and Twinning2016
- Author(s)
  Kaneki TSUZAKI, Motomichi KOYAMA
- Organizer
  3rd International Conference on High Manganese Steels (HMnS2016)
- Place of Presentation
  成都、中国
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06365

1. Tsuzaki Kaneaki (40179990)

# of Collaborated Projects: 3 results

# of Collaborated Products: 64 results
2. MATSUNAGA Hisao (80346816)

# of Collaborated Projects: 3 results

# of Collaborated Products: 1 results
3. NOGUCHI Hiroshi (80164680)

# of Collaborated Projects: 2 results

# of Collaborated Products: 41 results
4. 北條智彦 (50442463)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
5. 佐々木大輔 (50772498)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
6. 奥山彫夢 (50804655)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
7. SAWAGUCHI Takahiro (30354161)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
8. HIGASHIDA Kenji (70156561)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. Akiyama Eiji (70231834)

# of Collaborated Projects: 1 results

# of Collaborated Products: 5 results
10. 濱田繁 (90432856)

# of Collaborated Projects: 1 results

# of Collaborated Products: 13 results
11. 福島良博 (40156774)

# of Collaborated Projects: 1 results

# of Collaborated Products: 13 results
12. 味戸沙耶 (20903834)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
13. 武富紳也 (20608096)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
14. 田中將己 (40452809)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
15. 松野崇 (30781687)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
16. 浜孝之 (10386633)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
17. 松田知子 (00587644)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
18. 熊谷正芳 (20582498)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
19. VARANASI RAMA SRINIVAS

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
20. 折茂慎一

# of Collaborated Projects: 0 results

# of Collaborated Products: 2 results
21. 齋藤寛之

# of Collaborated Projects: 0 results

# of Collaborated Products: 2 results
22. 小山敏幸

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Koyama Motomichi 小山 元道

KOYAMA Motomichi 小山 元道

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Co-Researchers

水素由来の『硬化』に起因する脆化メカニズムの解明Principal Investigator

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高圧水素環境下における疲労き裂進展抵抗の決定因子の解明と高強度耐水素鋼の創製

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逆解析フェイクを介した破断部金属組織の力学量分布同化解析と組織設計への展開

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原子スケール界面制御による金属の水素誘起脆性破壊抑制Principal Investigator

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Development of In situ characterization methods for dislocation motion at a crack tip: overcoming metal fatiguePrincipal Investigator

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Effect of stress on hydrogen trapping state and elucidation of hydrogen embrittlement

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Multi-probe Characterization of Hydrogen, Dislocation, and Damage: towards unraveling hydrogen embrittlement mechanism of advanced high strength steelsPrincipal Investigator

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Fatigue crack propagation in steels

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水素社会実現に貢献する水素インフラ用構造材料としての「耐水素鋼」の創出

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Methodological development of multi-scale characterization toward clarifying hydrogen embrittlement mechanism of multi-phase steelsPrincipal Investigator

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Designing Ferrous Shape-Memory Alloys with Improved Fatigue Lives toward New Anti-Seismic Metallic Damper for Tower Buildings

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[Journal Article] Cr Effects on the Local Plasticity Evolution and Fracture Behaviors of Ni–Cr Alloys Tensile-Tested under Hydrogen Charging2023

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[Journal Article] Mechanical loading effect on the hydrogen uptake of tempered martensite steel: Elastic strain effect vs. plastic strain effect2023

Koyama Motomichi 小山元道

KOYAMA Motomichi 小山元道