Wakai Eiichi 若井栄一

Researcher Number	20360422
Other IDs
Affiliation (Current)	2025: 国立研究開発法人日本原子力研究開発機構, J－PARCセンター, 研究職
Affiliation (based on the past Project Information) *help	2024: 国立研究開発法人日本原子力研究開発機構, J－PARCセンター, 研究職 2022 – 2024: 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 J－PARCセンター, 研究職 2021 – 2022: 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 J－PARCセンター, 研究主席
Review Section/Research Field	Principal Investigator Medium-sized Section 31:Nuclear engineering, earth resources engineering, energy engineering, and related fields Except Principal Investigator Medium-sized Section 15:Particle-, nuclear-, astro-physics, and related fields
Keywords	Principal Investigator 同時計測 / 放射線 / チタン系 / 鉄系 / パルスレーザー照射 / 電気抵抗測定 / 照射線場 / イノベーション物質 / 同時計測法 / 照射損傷 … More / 陽電子寿命測定 / 4端子電気抵抗法 / チタン合金 / ハイエントロピー合金 … More Except Principal Investigator オメガ相 / ベータチタン / ナノインデンテーション / イオン照射 / ヘリウム脆化 / 大強度陽子加速器 / 2次粒子生成標的 / ビーム窓 / 照射損傷 / チタン合金 Less

Development of extremely radiation-damage tolerant beam window made of beta titanium alloy
- Principal Investigator
  
  石田卓
- Project Period (FY)
  2021 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 15:Particle-, nuclear-, astro-physics, and related fields
- Research Institution
  High Energy Accelerator Research Organization
Development of multi-type simultaneous measurement method in radiation field toward the creation of innovative materialsPrincipal Investigator
- Principal Investigator
  
  若井栄一
- Project Period (FY)
  2021 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 31:Nuclear engineering, earth resources engineering, energy engineering, and related fields
- Research Institution
  Japan Atomic Energy Agency

All 2024 2023 2022 2021

All Journal Article Presentation

[Journal Article] Microstructures and hardness of BCC phase iron-based high entropy alloy Fe-Mn-Cr-V-Al-C2024
- Author(s)
  Wakai Eiichi、Noto Hiroyuki、Shibayama Tamaki、Furuya Kazuyuki、Ando Masami、Kamada Takaharu、Ishida Taku、Makimura Shunsuke
- Journal Title
  
  Materials Characterization
  
  Volume: 211 Pages: 113881-113881
- DOI
  10.1016/j.matchar.2024.113881
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K04997, KAKENHI-PROJECT-21H04480
[Journal Article] Recent improvement and evaluation of radiation resistance and magnetic properties of high entropy alloys and their applications2023
- Author(s)
  Wakai Eiichi、Noto Hiroyuki、Shibayama Tamaki、Furuya Kazuyuki、Wakui Takashi、Ando Masami、Makimura Shunsuke、Ishida Taku
- Journal Title
  
  Science Talks
  
  Volume: 8 Pages: 100278-100278
- DOI
  10.1016/j.sctalk.2023.100278
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18K04997, KAKENHI-PROJECT-21H04480
[Journal Article] Development of Innovative Materials and Measurement Systems used for Radiation Environment2022
- Author(s)
  Eiichi Wakai, Yosuke Iwamoto, Kodai Toyota, Takashi Onizawa, Takashi Wakui, Tamaki Shibayama, Yuki Nakagawa, Koichi Sato, Taku Ishida, Shunsuke Makimura, Hiroyuki Noto
- Journal Title
  
  Research & Development in Material Science
  
  Volume: 16 Issue: 4 Pages: 1859-1867
- DOI
  10.31031/rdms.2022.16.000894
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-21H04668, KAKENHI-PROJECT-19H02652
[Journal Article] Titanium/Titanium Oxide Particle Dispersed W-TiC Composites for High Irradiation Applications2022
- Author(s)
  Eiichi Wakai, Hiroyuki Noto, Sho Kano, Shunsuke Makimura, Taku Ishida and Tamaki Shibayama
- Journal Title
  
  Research & Development in Material Science
  
  Volume: 16 Issue: 5 Pages: 1879-1885
- DOI
  10.31031/rdms.2022.16.000897
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-21H04668
[Journal Article] Irradiation damages of structural materials under different irradiation environments2021
- Author(s)
  Wakai Eiichi、Takaya Shigeru、Matsui Yoshinori、Nagae Yuji、Kato Shoichi、Suzudo Tomoaki、Yamaguchi Masataka、Aoto Kazumi、Nogami Shuhei、Hasegawa Akira、Abe Hiroaki、Sato Koichi、Ishida Taku、Makimura Shunsuke、Hurh Patrick G.、Ammigan Kavin、Senor David J.、Casella Andrew M.、Edwards Danny J.
- Journal Title
  
  Journal of Nuclear Materials
  
  Volume: 543 Pages: 152503-152503
- DOI
  10.1016/j.jnucmat.2020.152503
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04480, KAKENHI-PROJECT-19H01913
[Journal Article] チタン合金製陽子加速器ビーム窓の脆化原因を解明～RaDIATE国際コラボレーションによる加速器標的・ビーム窓材料の開発～2021
- Author(s)
  石田卓・若井栄一
- Journal Title
  
  Isotope News
  
  Volume: 777 Pages: 20-23
- Open Access
- Data Source
  KAKENHI-PROJECT-21H04480
[Journal Article] チタン合金製陽子加速器ビーム窓の脆化原因を解明　～ RaDIATE国際コラボレーションによる加速器標的・ビーム窓材料の開発～2021
- Author(s)
  石田卓、若井栄一
- Journal Title
  
  Isotope News
  
  Volume: 777 Pages: 20-23
- Open Access
- Data Source
  KAKENHI-PROJECT-21H04668
[Presentation] 体心立方結晶構造を主に持つ鉄系、チタン系、タングステン系ハイエントロピー合金の特性評価（照射効果含む）2024
- Author(s)
  若井栄一、能登裕之、柴山環樹、岩元洋介、石田卓、佐藤紘一、薮内敦、義家敏正、高橋俊晴、小林康浩、涌井隆、古谷一幸、鎌田貴晴、安堂正己、猿田晃一、牧村俊助
- Organizer
  日本金属学会2024年春期講演大会シンポジウム
- Data Source
  KAKENHI-PROJECT-21H04480
[Presentation] Iron-Based High Entropy Alloys2023
- Author(s)
  Eiichi Wakai, Hiroyuki Noto, Kazuyuki Furuya, Masami Ando, Takashi Wakui, Shunsuke Makimura, Taku Ishida, Tamaki Shibayama, Takaharu Kamada
- Organizer
  15th International Workshop on Spallation Materials Technology
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04668
[Presentation] Titanium-Based High Entropy Alloys and Industrial Titanium Alloys2023
- Author(s)
  Eiichi Wakai, Hiroyuki Noto, Taku Ishida, Sho Kano, Shunsuke Makimura, Takaki Shibayama
- Organizer
  15th International Workshop on Spallation Materials Technology
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04668
[Presentation] 鉄系、チタン系、タングステン系ハイエントロピー合金の作製と特性評価2023
- Author(s)
  若井栄一、叶野翔、石田卓、牧村俊助、柴山環樹、涌井隆
- Organizer
  公益社団法人日本金属学会　2023年春期第172回講演大会
- Data Source
  KAKENHI-PROJECT-21H04668
[Presentation] Development of Highly Irradiation-Resistant Titanium Alloy Materials for Use in High-Intensity Accelerator Target Environments2023
- Author(s)
  Taku Ishida, Eiichi Wakai, Sho Kano, Shunsuke Makimura, Chris Densham, Mike Fitton
- Organizer
  21th International conference on Fusion Reactor Materials (ICFRM21)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04480
[Presentation] 最先端加速器技術で産業を革新する－超耐熱高靭性・高電気抵抗率タングステン合金2023
- Author(s)
  牧村俊助、栗下裕明、石田卓、石田正紀、若井栄一、叶野翔、湊丈俊、河野翔也、長江正寛、阪本辰顕、能登裕之、新倉高一、尾ノ井正裕、鄭憲採、中森洋一、近藤大介、木村惇郎、長澤豊、猪爪正志、松本康裕、小島純一、小笠原七海、服部里絵、前中志郎、藤田和宣
- Organizer
  つくばサイエンスアカデミーＳＡＴテクノロジー・ショーケース 2023、ベスト産業実用化、
- Data Source
  KAKENHI-PROJECT-21H04668
[Presentation] Titanium-Based High Entropy Alloys and Industrial Titanium Alloys2023
- Author(s)
  Eiichi Wakai, Hiroyuki Noto, Taku Ishida, Sho Kano, Shunsuke Makimura, Takaki Shibayama Eiichi Wakai, Hiroyuki Noto, Kazuyuki Furuya, Masami Ando, Takashi Wakui, Shunsuke Makimura, Taku Ishida, Tamaki Shibayama, Takaharu Kamada
- Organizer
  15th International Workshop on Spallation Materials Technology
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04480
[Presentation] Evaluation of β-phase based titanium alloys2023
- Author(s)
  Eiichi Wakai, Taku Ishida, Sho Kano, Tamaki Shibayama, Koichi Sato, Hiroyuki Noto, Shunsuke Makimura, Kazuyuki Furuya, Atsushi Yabuuchi, Toshimasa Yoshiie, Toshiharu Takahashi, Yasuhiro Kobayashi, Yosuke Iwamoto, Masayuki Tokitani
- Organizer
  High power targetry workshop 2023 (HPTW2023)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04480
[Presentation] Titanium-Based High Entropy Alloys2023
- Author(s)
  Eiichi Wakai, Hiroyuki Noto, Shunsuke Makimura, Taku Ishida, Kazuyuki Furuya, Tamaki Shibayama
- Organizer
  21th International conference on Fusion Reactor Materials (ICFRM21)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04480
[Presentation] 鉄系、チタン系、タングステタングステ系ハイエントロピー合金の作製と特性評価2023
- Author(s)
  若井栄一、叶野翔、石田卓、牧村俊助、柴山環樹、涌井隆
- Organizer
  日本金属学会　2023年春季大172回講演大会
- Data Source
  KAKENHI-PROJECT-21H04480
[Presentation] CWファイバーレーザー照射法を用いた放射性廃棄物容器のリユースの開発2022
- Author(s)
  須田翔哉、政井啓太、川原孝宏、藤倉敏貴、星亜紀子、若井栄一、近藤啓悦、西村昭彦、峰原英介
- Organizer
  日本原子力学会　2022年秋の大会
- Data Source
  KAKENHI-PROJECT-21H04668
[Presentation] Fabrication and Characterization of iron-based and tungsten based high-entropy alloys2022
- Author(s)
  Eiichi Wakai, Hiroyuki Noto, Tamaki Shibayama, Yosuke Iwamoto, Koichi Sato, Takashi Wakui, Kazuyuki Furuya, Masami Ando, Yukihiro Yano, Maya Yoshikawa, Kodai Toyoda, Takashi Onizawa
- Organizer
  The Nuclear Materials Conference, 2022
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04668
[Presentation] Ti合金のイオン照射した硬化挙動と微細組織の解析2022
- Author(s)
  若井栄一、叶野翔、石田卓、牧村俊助、柴山環樹、涌井隆
- Organizer
  日本金属学会　2022年秋期第171回講演大会
- Data Source
  KAKENHI-PROJECT-21H04480
[Presentation] RaDIATE activities at J-PARC2022
- Author(s)
  S.Makimura, T.Nakadaira, N.Kawamura, H.Takahashi, T.Ishida, S.Meigo, E.Wakai, Y.Iwamoto , M.Teshigawara, S.Kano, H.Matsuda, M.Hagiwara, N.Nakazato, K.Ammigan, S.Bidha, F.Pellemoine, K.Yonehara, D.J.Senor, A.M.Casella, A.Roy, R.Devanathan, M.Palmer, D.Kim, M. Calviani, N. Charitonidis, J. Maestre, C. T. Martin
- Organizer
  RaDIATE collaboration meeting 2022
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04480
[Presentation] 高放射線環境下等で使用するイノベーション物質の創製に向けて --ハイエントロピー合金、高密度ナノクラスター、TiC添加法など-2022
- Author(s)
  若井栄一、能登裕之、石田卓、牧村俊助、柴山環樹、中川祐貴、佐藤紘一、叶野翔、岩元洋介、涌井隆、豊田昊大、鬼澤高志
- Organizer
  材料照射研究会2022
- Data Source
  KAKENHI-PROJECT-21H04480
[Presentation] 電子線照射その場観察による316FR鋼の耐照射性評価2022
- Author(s)
  豊田晃大、若井栄一、鬼澤高志、柴山環樹、中川祐貴
- Organizer
  日本金属学会
- Data Source
  KAKENHI-PROJECT-21H04668
[Presentation] レーザー照射中の金属及びシリコンの電気抵抗率測定2022
- Author(s)
  岩元洋介、若井栄一、中川祐貴、柴山環樹
- Organizer
  日本金属学会
- Data Source
  KAKENHI-PROJECT-21H04668
[Presentation] 高放射線環境下等で使用するイノベーション物質の創製に向けて -ハイエントロピー合金、高密度ナノクラスター、TiC添加法など-2022
- Author(s)
  若井栄一、能登裕之、石田卓、牧村俊助、柴山環樹、中川祐貴、佐藤紘一、叶野翔、岩元洋介、涌井隆、豊田昊大、鬼澤高志
- Organizer
  材料照射研究会2022
- Data Source
  KAKENHI-PROJECT-21H04668
[Presentation] 核破砕中性子源水銀標的の耐久性向上に向けた研究開発（4）水銀標的の余寿命を評価するための照射損傷評価に関する研究開発2022
- Author(s)
  涌井隆、斎藤滋、若井栄一、酒井知紀、森孝太郎、二川正敏
- Organizer
  日本原子力学会　2022年秋の大会
- Data Source
  KAKENHI-PROJECT-21H04668
[Presentation] 放射線場でのマルチ同時計測法の開発とイノベーション物質の研究2022
- Author(s)
  若井栄一、岩元洋介、柴山環樹、佐藤紘一、豊田晃大、鬼澤高志、涌井隆、石田卓、牧村俊助、中川祐貴、矢野祥弘
- Organizer
  日本金属学会
- Data Source
  KAKENHI-PROJECT-21H04668
[Presentation] Wイオン照射した純WとW-1.1%TiCの照射損傷の研究2022
- Author(s)
  若井栄一、能登裕之、叶野翔、石田卓、牧村俊助、柴山環樹
- Organizer
  日本金属学会
- Data Source
  KAKENHI-PROJECT-21H04668
[Presentation] 鉄系ハイエントロピー合金の特性評価2022
- Author(s)
  若井栄一、柴山環樹、能登裕之、涌井隆
- Organizer
  日本原子力学会　2022年秋の大会
- Data Source
  KAKENHI-PROJECT-21H04668
[Presentation] RaDIATE activities at J-PARC2022
- Author(s)
  S. Makimura, T. Nakadaira, N. Kawamura, H. Takahashi, T. Ishida, S. Meigo, E. Wakai, Y. Iwamoto, M.Teshigawara, S.Kano, H.Matsuda, M.Hagiwara, N.Nakazato, K.Ammigan, S.Bidha, F.Pellemoine, K.Yonehara, D.Senor, A.Casella, A.Roy, R.Devanathan, M.Palmer, D.Kim, M.Calviani, N.Charitonidis, J.Maestre, C.Martin
- Organizer
  RaDIATE collaboration meeting 2022
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04668
[Presentation] Ti合金のイオン照射した硬化挙動と微細組織の解析2022
- Author(s)
  若井栄一、叶野翔、石田卓、牧村俊助、柴山環樹、涌井隆
- Organizer
  公益社団法人日本金属学会　2022年秋期第171回講演大会
- Data Source
  KAKENHI-PROJECT-21H04668
[Presentation] 大強度陽子加速器ビーム窓用チタン合金放射線損傷研究の展開2021
- Author(s)
  石田卓、若井栄一、RaDIATE members
- Organizer
  日米科学技術協力プログラムハワイシンポジウム
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H04668
[Presentation] 極限的高熱負荷照射環境下で使用されるW系材料特性評価2021
- Author(s)
  若井栄一、能登裕之、叶野翔、牧村俊助、石田卓、柴山環樹
- Organizer
  プラズマ核融合学会
- Data Source
  KAKENHI-PROJECT-21H04668
[Presentation] 照射欠陥の同時計測法の開発に向けて　イノベーション材料の創出を目指して2021
- Author(s)
  若井栄一、岩元洋介、豊田晃大、鬼澤高志、涌井隆、石田卓、牧村俊助、柴山環樹、中川祐貴、佐藤紘一、叶野翔、阿部弘亨、能登裕之
- Organizer
  材料照射研究会.「原子力イノベーションを見据えた材料研究」
- Data Source
  KAKENHI-PROJECT-21H04668

1. 石田卓 (70290856)

# of Collaborated Projects: 2 results

# of Collaborated Products: 26 results
2. 牧村俊助 (10391715)

# of Collaborated Projects: 2 results

# of Collaborated Products: 23 results
3. 涌井隆 (50377214)

# of Collaborated Projects: 2 results

# of Collaborated Products: 15 results
4. 明午伸一郎 (80354728)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
5. 叶野翔 (00742199)

# of Collaborated Projects: 1 results

# of Collaborated Products: 7 results
6. 柴山環樹 (10241564)

# of Collaborated Projects: 1 results

# of Collaborated Products: 15 results
7. 佐藤紘一 (30378971)

# of Collaborated Projects: 1 results

# of Collaborated Products: 5 results
8. 豊田晃大 (30912654)

# of Collaborated Projects: 1 results

# of Collaborated Products: 5 results
9. 古谷一幸 (70354660)

# of Collaborated Projects: 1 results

# of Collaborated Products: 4 results
10. 鬼澤高志 (70421584)

# of Collaborated Projects: 1 results

# of Collaborated Products: 6 results
11. 岩元洋介 (10391327)

# of Collaborated Projects: 1 results

# of Collaborated Products: 7 results

Wakai Eiichi 若井 栄一

Research Projects

Research Products

Co-Researchers

Development of extremely radiation-damage tolerant beam window made of beta titanium alloy

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of multi-type simultaneous measurement method in radiation field toward the creation of innovative materialsPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Journal Article] Microstructures and hardness of BCC phase iron-based high entropy alloy Fe-Mn-Cr-V-Al-C2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Recent improvement and evaluation of radiation resistance and magnetic properties of high entropy alloys and their applications2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Development of Innovative Materials and Measurement Systems used for Radiation Environment2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Titanium/Titanium Oxide Particle Dispersed W-TiC Composites for High Irradiation Applications2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Irradiation damages of structural materials under different irradiation environments2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] チタン合金製陽子加速器ビーム窓の脆化原因を解明～RaDIATE国際コラボレーションによる加速器標的・ビーム窓材料の開発～2021

Author(s)

Journal Title

Data Source

[Journal Article] チタン合金製陽子加速器ビーム窓の脆化原因を解明 ～ RaDIATE国際コラボレーションによる加速器標的・ビーム窓材料の開発 ～2021

Author(s)

Journal Title

Data Source

[Presentation] 体心立方結晶構造を主に持つ鉄系、チタン系、タングステン系ハイエントロピー合金の特性評価（照射効果含む）2024

Author(s)

Organizer

Data Source

[Presentation] Iron-Based High Entropy Alloys2023

Author(s)

Organizer

Data Source

[Presentation] Titanium-Based High Entropy Alloys and Industrial Titanium Alloys2023

Author(s)

Organizer

Data Source

[Presentation] 鉄系、チタン系、タングステン系ハイエントロピー合金の作製と特性評価2023

Author(s)

Organizer

Data Source

[Presentation] Development of Highly Irradiation-Resistant Titanium Alloy Materials for Use in High-Intensity Accelerator Target Environments2023

Author(s)

Organizer

Data Source

[Presentation] 最先端加速器技術で産業を革新する－超耐熱高靭性・高電気抵抗率タングステン合金2023

Author(s)

Organizer

Data Source

[Presentation] Titanium-Based High Entropy Alloys and Industrial Titanium Alloys2023

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Data Source

[Presentation] Evaluation of β-phase based titanium alloys2023

Author(s)

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Wakai Eiichi 若井栄一

[Journal Article] チタン合金製陽子加速器ビーム窓の脆化原因を解明　～ RaDIATE国際コラボレーションによる加速器標的・ビーム窓材料の開発～2021

[Presentation] 鉄系、チタン系、タングステタングステ系ハイエントロピー合金の作製と特性評価2023

[Presentation] 核破砕中性子源水銀標的の耐久性向上に向けた研究開発（4）水銀標的の余寿命を評価するための照射損傷評価に関する研究開発2022

[Presentation] 大強度陽子加速器ビーム窓用チタン合金放射線損傷研究の展開2021