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SADAMATSU Sunao  定松 直

ORCIDConnect your ORCID iD *help
Researcher Number 10709554
Other IDs
Affiliation (Current) 2025: 鹿児島大学, 理工学域工学系, 准教授
Affiliation (based on the past Project Information) *help 2019 – 2023: 鹿児島大学, 理工学域工学系, 准教授
2015 – 2018: 鹿児島大学, 理工学域工学系, 助教
2015: 鹿児島大学, 工学部, 助教
2014: 鹿児島大学, 理工学研究科, 助教
Review Section/Research Field
Principal Investigator
Basic Section 18010:Mechanics of materials and materials-related / Materials/Mechanics of materials
Except Principal Investigator
Medium-sized Section 26:Materials engineering and related fields / Structural/Functional materials
Keywords
Principal Investigator
金属強度 / 電子顕微鏡 / 転位 / デジタル画像相関法 / 電子顕微鏡法透過型 / 力学特性 / 転位論 / 材料工学 / 塑性変形 / 脆性-延性遷移 … More / 力学的性質 / 電子線トモグラフィー / 超高圧電子顕微鏡 / 靭性 / 金属物性 / 構造材料 / 亀裂 / 脆性-延性遷移 / 脆性破壊 … More
Except Principal Investigator
靭性 / 転位 / 破壊 / 脆化 / 応力遮蔽効果 / 水素 / 転位遮蔽効果 / 亀裂 / 水素脆化 / 破壊靭性 / 遮蔽効果 / き裂 / 水素脆性 / 強度・破壊靭性 / 電子顕微鏡 / 機能・構造材料 / 構造・機能材料 Less
  • Research Projects

    (4 results)
  • Research Products

    (9 results)
  • Co-Researchers

    (10 People)
  •  Elucidation of Stress-Strain Response Dominant Factors in Crystalline Materials by Multiscale Strain AnalysisPrincipal Investigator

    • Principal Investigator
      定松 直
    • Project Period (FY)
      2023 – 2025
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Review Section
      Basic Section 18010:Mechanics of materials and materials-related
    • Research Institution
      Kagoshima University
  •  Multi-scale modeling and experimental study for the mechanism of hydrogen embrittlement based on the theory of crack-tip shielding by dislocations

    • Principal Investigator
      Higashida Kenji
    • Project Period (FY)
      2018 – 2022
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Review Section
      Medium-sized Section 26:Materials engineering and related fields
    • Research Institution
      Kyushu University
      Sasebo National College of Technology
  •  Investigation of multiplication process of crack tip dislocations by 4D-HVEM-tomographPrincipal Investigator

    • Principal Investigator
      SADAMATSU Sunao
    • Project Period (FY)
      2015 – 2017
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Materials/Mechanics of materials
    • Research Institution
      Kagoshima University
  •  Study on fracture toughness unifying nanomaterials science and micro fracture mechanics.

    • Principal Investigator
      Higashida Kenji
    • Project Period (FY)
      2014 – 2017
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Research Field
      Structural/Functional materials
    • Research Institution
      Sasebo National College of Technology
      Kyushu University

All 2023 2022 2020 2017 2016 2015

All Journal Article Presentation

  • [Journal Article] Effect of Crack-tip Shielding by Dislocations on Fracture Toughness – in Relation to Hydrogen Embrittlement –2022

    • Author(s)
      Kenji Higashida, Masaki Tanaka, Sunao Sadamatsu
    • Journal Title

      ISIJ International

      Volume: 62 Issue: 10 Pages: 2074-2080

    • DOI

      10.2355/isijinternational.ISIJINT-2022-237

    • ISSN
      0915-1559, 1347-5460
    • Year and Date
      2022-10-15
    • Language
      English
    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-18H03848, KAKENHI-PLANNED-18H05451
  • [Journal Article] Crack-tip Dislocations and Brittle-to-Ductile Transition2017

    • Author(s)
      田中 將己、定松 直、東田 賢二
    • Journal Title

      Materia Japan

      Volume: 56 Issue: 10 Pages: 597-603

    • DOI

      10.2320/materia.56.597

    • NAID

      130006109915

    • ISSN
      1340-2625, 1884-5843
    • Language
      Japanese
    • Data Source
      KAKENHI-PROJECT-26249106, KAKENHI-PROJECT-15H04147
  • [Journal Article] Transmission electron microscopy of bulk specimens over 10 μm in thickness2016

    • Author(s)
      S. Sadamatsu, M. Tanaka, K. Higashida, S. Matsumura
    • Journal Title

      Ultramicroscopy

      Volume: 162 Pages: 10-16

    • DOI

      10.1016/j.ultramic.2015.09.001

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-26249106
  • [Journal Article] Observation of Dislocations in Thick Specimens Using by The High-Voltage Electron Microscopy with an Energy Filter2016

    • Author(s)
      定松直, 田中將己, 東田賢二, 松村晶
    • Journal Title

      Materia Japan

      Volume: 55 Issue: 12 Pages: 597-597

    • DOI

      10.2320/materia.55.597

    • NAID

      130005170145

    • ISSN
      1340-2625, 1884-5843
    • Language
      Japanese
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-26249106, KAKENHI-PROJECT-15H04147
  • [Presentation] リューダース変形する鉄鋼材料の微視的不均一変形2023

    • Author(s)
      定松直
    • Organizer
      日本鉄鋼協会
    • Data Source
      KAKENHI-PROJECT-23K03578
  • [Presentation] 応力遮蔽理論に基づく亀裂先端転位増殖機構2020

    • Author(s)
      田中將己, 定松直,
    • Organizer
      MRM Forum 2020
    • Data Source
      KAKENHI-PROJECT-18H03848
  • [Presentation] HVEMによるSi単結晶中の亀裂先端転位群の三次元構造解析2017

    • Author(s)
      山崎俊二,定松直
    • Organizer
      平成29年度 合同学術講演大会
    • Data Source
      KAKENHI-PROJECT-15K21250
  • [Presentation] 超高圧電子顕微鏡を用いたSi単結晶中亀裂先端転位群の三次元構造解析2017

    • Author(s)
      山崎俊二,定松直
    • Organizer
      金属学会2017年秋季講演大会
    • Data Source
      KAKENHI-PROJECT-15K21250
  • [Presentation] 超高圧電子顕微鏡によるSi結晶中の亀裂先端転位三次元構造解析2015

    • Author(s)
      田中將己, 定松直, 東田賢二
    • Organizer
      日本学術振興会第161委員会第90回研究会
    • Place of Presentation
      九州大学
    • Year and Date
      2015-03-05
    • Data Source
      KAKENHI-PROJECT-26249106
  • 1.  Higashida Kenji (70156561)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 2 results
  • 2.  SHIMOKAWA Tomotsugu (40361977)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 3.  田中 將己 (40452809)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 3 results
  • 4.  MATSUMURA Syo (60150520)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 1 results
  • 5.  YAMAGUCHI Masatake (50360417)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 6.  森川 龍哉 (00274506)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 7.  西口 廣志 (00580862)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 8.  川崎 仁晴 (10253494)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 9.  大橋 鉄也 (80312445)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 10.  YAMAZAKI Syunji
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 2 results

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