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Hydrogen Embrittlement Suppression Based on Protective Film-Oriented Compositional Design

Research Project

Project/Area Number 24656078
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field Materials/Mechanics of materials
Research InstitutionTohoku University

Principal Investigator

WATANABE Yutaka  東北大学, 工学(系)研究科(研究院), 教授 (10260415)

Co-Investigator(Kenkyū-buntansha) ABE Hiroshi  東北大学, 大学院工学研究科, 助教 (30540695)
MIYAZAKI Takamichi  東北大学, 大学院工学研究科, 技術職員 (20422090)
Project Period (FY) 2012-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords水素脆化 / 環境強度 / 鉄鋼材料 / 酸化皮膜 / 水素透過試験
Research Abstract

Oxide species of which solubility of hydrogen is extremely low has been investigated based on literature survey. It has been considered that Cr2O3 shows excellent performance from the suppression of hydrogen permeation point of view.
Hydrogen permeability of the oxide layer which formed on type 430 stainless steel with different condition of surface finish and oxidation treatment has been evaluated by electrochemical hydrogen permeation technique. Even a nanometer-scaled Cr rich oxide decrease the hydrogen permission current significantly. Different hydrogen permission current behaviors have been found for different type of surface finish and it may be due to the difference in protectiveness of oxide layer.

Report

(3 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • Research Products

    (2 results)

All 2014

All Presentation (2 results)

  • [Presentation] 保護性酸化皮膜によるステンレス鋼への水素侵入抑制2014

    • Author(s)
      山田宏, 阿部博志, 渡邉豊
    • Organizer
      平成25年度腐食防食学会東北支部講演会
    • Place of Presentation
      仙台市
    • Year and Date
      2014-03-25
    • Related Report
      2013 Final Research Report
  • [Presentation] 保護性酸化皮膜によるステンレス鋼への水素侵入抑制2014

    • Author(s)
      山田 宏、阿部博志、渡邉 豊
    • Organizer
      平成25年度 腐食防食学会 東北支部講演会
    • Place of Presentation
      東北大学工学部 青葉記念会館5階 大会議室
    • Related Report
      2013 Annual Research Report

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Published: 2013-05-31   Modified: 2019-07-29  

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