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Mechanism study of hydrogen embrittlement by martensite transition visualization system and X-ray tomography

Research Project

Project/Area Number 19KK0095
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 18:Mechanics of materials, production engineering, design engineering, and related fields
Research InstitutionTohoku University

Principal Investigator

Uchimoto Tetsuya  東北大学, 流体科学研究所, 教授 (70313038)

Co-Investigator(Kenkyū-buntansha) 武田 翔  東北大学, 流体科学研究所, 助教 (10826225)
榎 浩利  国立研究開発法人産業技術総合研究所, エネルギー・環境領域, 主任研究員 (90160374)
飯島 高志  国立研究開発法人産業技術総合研究所, エネルギー・環境領域, 招聘研究員 (90356402)
鯉渕 弘資  茨城工業高等専門学校, 国際創造工学科, 研究員 (00178196)
Kim Hyunjeong  国立研究開発法人産業技術総合研究所, エネルギー・環境領域, 主任研究員 (00614645)
Project Period (FY) 2019-10-07 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2021: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2020: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2019: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Keywords非破壊評価 / 破壊力学 / 水素脆性 / オーステナイト系ステンレス鋼 / 材料評価 / X線CT / 破壊
Outline of Research at the Start

本研究課題では,相変態の観点からのオーステナイト系ステンレス鋼の水素脆性のメカニズム解明を解明するために,水素脆性評価試験時にマルテンサイト変態のその場観察を定量的に行う新しいシステムを開発し, 相変態のモニタリングを行う.開発したシステムを用いて得られる定量的な相変態の時系列情報と熱力学平衡計算と弾塑性解析に基づくマルテンサイト相予測を比較することにより,マルテンサイト変態が水素脆性に寄与するメカニズムを明らかにする.

Outline of Final Research Achievements

To understand the mechanism of hydrogen embrittlement of austenitic stainless steels from the viewpoint of phase transformation, we developed a novel system for quantitative in-situ observation of martensitic transformation during material testing of hydrogen-charged materials and evaluated phase transformation in tensile and fatigue specimens of hydrogen-charged materials. In the tensile test, it was confirmed that hydrogen enhanced the work-induced martensitic transformation. For discussion, in-situ phase analysis during tensile tests was performed at the synchrotron radiation facility, and it was confirmed that the hydrogen charge promoted the formation of the epsilon phase and the martensitic phase. Fatigue tests confirmed that hydrogen suppressed martensitic transformation around the cracks and that the crack surfaces were in contact.

Academic Significance and Societal Importance of the Research Achievements

水素化社会に向けて、水素用材料の水素脆性メカニズムの解明が求められている。オーステナイト系ステンレス鋼の水素脆性メカニズムの理解のためには、特に相変態の観点からの検討が重要である。本研究で開発した高分解能マルテンサイト可視化システムは水素チャージ材の材料試験時のマルテン サイト変態の定量的その場観察が可能であり、メカニズム解明のツールとなりうる。また本研究では、疲労試験では水素チャージがマルテンサイト変態を抑制し、引張り試験では逆に促進するという新たな知見を得ており、メカニズムの理解に向けて新たな展開が期待される。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (18 results)

All 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (3 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results) Presentation (13 results) (of which Int'l Joint Research: 6 results,  Invited: 1 results)

  • [Int'l Joint Research] INSA-Lyon(フランス)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] INSA-Lyon(フランス国立応用科学院リヨン校)(フランス)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] INSA-Lyon(フランス)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Magnetic indicators for evaluating plastic strains in electrical steel: Toward non-destructive assessment of the magnetic losses2023

    • Author(s)
      Shurui Zhang, Benjamin Ducharne, Gael Sebald, Sho Takeda, Tetsuya Uchimoto
    • Journal Title

      NDT and E International

      Volume: 134 Pages: 1027801-12

    • DOI

      10.1016/j.ndteint.2022.102780

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Characterization of fatigue crack of hydrogen-charged austenitic stainless steel by electromagnetic and ultrasonic techniques2022

    • Author(s)
      Takeda Sho、Ohara Yoshikazu、Uchimoto Tetsuya、Enoki Hirotoshi、Iijima Takashi、Tokuda Eri、Yamada Takumi、Nagatomo Yuzo
    • Journal Title

      International Journal of Hydrogen Energy

      Volume: 47 Issue: 75 Pages: 32223-32234

    • DOI

      10.1016/j.ijhydene.2022.07.105

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Presentation] 渦電流試験による水素チャージしたオーステナイト系ステンレス鋼のマルテンサイト相変態とマイクロクラックの評価2023

    • Author(s)
      呉 泰成, 武田 翔, 内一 哲哉, 味戸 沙耶, 小山 元道, 秋山 英二
    • Organizer
      日本機械学会東北支部 東北学生会 第53回学生員卒業研究発表講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Evaluation of the Hydrogen Effect on Stress Field during Fatigue Testing of Austenitic Stainless Steel by Digital Image Correlation2022

    • Author(s)
      Sho TAKEDA, Tetsuya UCHIMOTO, Damien FABREGUE, Justine PAPILLON, Joel LACHAMBRE
    • Organizer
      20th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Inductance spectroscopy for electrical steel characterization2022

    • Author(s)
      Benjamin DUCHARNE, Gael SEBALD, Shurui ZHANG, Sho TAKEDA, Tetsuya UCHIMOTO
    • Organizer
      20th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 渦電流磁気指紋法を用いた炭素鋼における圧縮残留応力の定量的評価2022

    • Author(s)
      滝上紘大, 武田翔, 内一哲哉
    • Organizer
      日本機械学会 M&M 2022 材料力学カンファレンス
    • Related Report
      2022 Annual Research Report
  • [Presentation] 磁気光学効果を利用した高解像渦電流試験プローブの性能評価2022

    • Author(s)
      金井一樹,武田 翔,内一哲哉,石橋隆幸
    • Organizer
      日本非破壊検査協会 2022年度 秋季講演大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Performance Evaluation of High Resolution Eddy Current Probe Using Magneto-Optical Effect2022

    • Author(s)
      Kazuki Kanai, Sho Takeda, Tetsuya Uchimoto, Takayuki Ishibashi
    • Organizer
      The 19th International Conference on Flow Dynamics (ICFD2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 電磁非破壊試験を用いた準安定オーステナイト系ステンレス鋼におけるマルテンサイト変態と水素脆化との関係性の検討2021

    • Author(s)
      宮内陽奈, 武田翔, 内一哲哉, Nicolas Mary, 味戸沙耶, 秋山英二, 榎浩利, 飯島高志
    • Organizer
      腐食防食学会:第68回材料と環境討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] Investigation of Hydrogen Embrittlement of Austenitic Stainless Steels by Electromagnetic Nondestructive Testing Method2021

    • Author(s)
      Hina Miyauchi, Tetsuya Uchimoto, Sho Takeda, Nicolas Mary, Hirotoshi Enoki, Takashi Iijima
    • Organizer
      Eighteenth International Conference on Flow Dynamics
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 電磁非破壊評価を用いたオーステナイト系ステンレス鋼の水素脆性試験における相変態評価2020

    • Author(s)
      内一 哲哉,武田 翔,徳田 衣莉,高木 敏行,山本 宏樹,飯島 高志,榎 浩利
    • Organizer
      鉄鋼協会 2020年秋季講演大会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 電磁非破壊評価による水素曝露したオーステナイト系ステンレス鋼の疲労き裂 進展過程の検討2020

    • Author(s)
      徳田衣莉,武田翔,内一哲哉,高木敏行,榎浩利,飯島高志
    • Organizer
      日本機械学会東北支部 第55期総会・講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] EDDY CURRENT TESTING AS AN EVALUATION METHOD OF THE PHASE TRANSITION OF AUSTENITIC STAINLESS STEELS BY HYDROGEN CHARGING2019

    • Author(s)
      Sho TAKEDA, Tetsuya UCHIMOTO, Toshiyuki TAKAGI, Hiroki YAMAMOTO, Hirotoshi ENOKI, and Takashi IIJIMA
    • Organizer
      The 24th International Workshop on Electromagnetic Nondestructive Evaluation (ENDE2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] オーステナイト系ステンレス鋼の水素脆性試験における渦電流試験による相変態評価2019

    • Author(s)
      武田 翔, 徳田 衣莉, 内一 哲哉, 高木 敏行, 山本 宏樹, 飯島 高志, 榎 浩利
    • Organizer
      日本機械学会 M&M2019 材料力学カンファレンス
    • Related Report
      2019 Research-status Report
  • [Presentation] Hydrogen Embrittlement Evaluation Using Eddy Current Testing on Fatigued Specimens of Hydrogen Charged Austenitic Stainless Steel2019

    • Author(s)
      Eri Tokuda, Sho Takeda, Tetsuya Uchimoto, Toshiyuki Takagi, Hirotoshi Enoki, Takashi Iijima
    • Organizer
      Sixteenth International Conference on Flow Dynamics (ICFD2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-10-10   Modified: 2024-01-30  

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