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Elucidation of the mechanism for hydrogen embrittlement in terms of the behavior of diffusive hydrogen

Research Project

Project/Area Number 22560689
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Structural/Functional materials
Research InstitutionIbaraki University

Principal Investigator

ITOH Goroh  茨城大学, 工学部, 教授 (80158758)

Co-Investigator(Kenkyū-buntansha) ITOH Nobuhide  茨城大学, 工学部, 准教授 (70203156)
Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords金属材料 / 水素 / 水素脆化 / 拡散 / アルミニウム / 鉄鋼材料 / アルミニウム合金 / ステンレス鋼 / き裂 / 金属間化合物相 / 侵入挙動 / 金属組織 / トリチウムオートラジオグラフィ / トリチウム / オートラジオグラフィ / 金属間化合物 / 晶出第二相 / 母相
Research Abstract

Behavior of diffusive hydrogen was investigated by means of tritium autoradiography that can visualize the location of hydrogen with respect to the microstructure. In a ferritic stainless steel, greater amount of hydrogen was detected at grain boundaries than inside the grains when stress-loaded. The invading hydrogen was deduced to be transferred and trapped to the grain boundaries. In Al-Mg-Zn base alloys, the amount of invading hydrogen was increased by stress loading. The invasion site was the matrix and second phase composed of Al-Cu-Fe.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (30 results)

All 2013 2012 2011 2010

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (25 results) (of which Invited: 2 results)

  • [Journal Article] Behavior of Hydrogen in Electrolytically Charged Aluminum2012

    • Author(s)
      Tomohiro Tsutsumi, Takahito,Watakabe and Goroh Itoh
    • Journal Title

      Advanced Materials Research

      Volume: 409巻 Pages: 84-87

    • DOI

      10.4028/www.scientific.net/amr.409.84

    • Related Report
      2012 Final Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Behavior of Hydrogen Invasion in Aluminum Alloys from Different Environments2012

    • Author(s)
      Takahito Watakabe, Goroh Itoh and Yuji Hatano
    • Journal Title

      Advanced Materials Research

      Volume: 409巻 Pages: 92-95

    • DOI

      10.4028/www.scientific.net/amr.409.92

    • Related Report
      2012 Final Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Visualization of Diffusive hydrogen2010

    • Author(s)
      Takahito Watakabe, Goroh Itoh, Yuji Hatano
    • Journal Title

      Materials Science Forum

      Volume: 654-656 Pages: 2903-2906

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Visualization of Diffusive Hydrogen in Aluminum2010

    • Author(s)
      Takahito Watakabe, Goroh Itoh, Yuji Hatano
    • Journal Title

      Proceedings of the 12th International Conference on Aluminium Alloys

      Pages: 2299-2302

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Behavior of Hydrogen in Auminum2010

    • Author(s)
      Goroh Itoh
    • Journal Title

      Proceedings of the 12th International Conference on Aluminium Alloys

      Pages: 1347-1352

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] 応力を負荷したアルミニウム合金への水素侵入挙動2013

    • Author(s)
      渡壁尚仁、中野雅彦、伊藤吾朗、波多野雄治
    • Organizer
      軽金属学会第124回春期大会
    • Place of Presentation
      富山大学五福キャンパス
    • Year and Date
      2013-05-18
    • Related Report
      2012 Final Research Report
  • [Presentation] 応力負荷したステンレス鋼中の水素の挙動2013

    • Author(s)
      関村玄弥、伊藤吾朗
    • Organizer
      日本鉄鋼協会第165回春季講演大会
    • Place of Presentation
      東京電機大学東京千住キャンパス
    • Year and Date
      2013-03-28
    • Related Report
      2012 Final Research Report
  • [Presentation] Hydrogen behavior in aluminum alloys and steels2013

    • Author(s)
      Goroh Itoh
    • Organizer
      International Conference on Processing and Manufacturing of Advanced Materials (THERMEC 2013)(Invited Lecture)
    • Place of Presentation
      ラスベガス(アメリカ合衆国)
    • Related Report
      2012 Final Research Report
  • [Presentation] Hydrogen Embrittlement in 7000 Series Aluminum Alloys2013

    • Author(s)
      Goroh Itoh
    • Organizer
      First Asian Conference on Aluminum Alloys (ACAA-2013)(Invited Lecture)
    • Place of Presentation
      北京(中国)
    • Related Report
      2012 Final Research Report
  • [Presentation] 応力負荷したステンレス鋼中の水素の挙動2013

    • Author(s)
      関村 玄弥, 伊藤 吾朗
    • Organizer
      日本鉄鋼協会 第165回春季講演大会
    • Place of Presentation
      東京
    • Related Report
      2012 Annual Research Report
  • [Presentation] 応力を負荷したアルミニウム合金への水素侵入挙動2013

    • Author(s)
      渡壁 尚仁, 中野 雅彦, 伊藤 吾朗, 波多野 雄治
    • Organizer
      軽金属学会第124回春期大会
    • Place of Presentation
      富山
    • Related Report
      2012 Annual Research Report
  • [Presentation] Hydrogen Embrittlement in 7000 Series Aluminum Alloys2013

    • Author(s)
      Goroh Itoh
    • Organizer
      First Asian Conference on Aluminum Alloys (ACAA-2013)
    • Place of Presentation
      中国、北京
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Hydrogen behavior in aluminum alloys and steels2013

    • Author(s)
      Goroh Itoh
    • Organizer
      International Conference on Processing and Manufacturing of Advanced Materials (THERMEC 2013)
    • Place of Presentation
      Las Vegas, USA
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Visualization of hydrogen electrolytically charged Aluminum2011

    • Author(s)
      Tomohiro Tsutsumi, Goroh Itoh, Nobuhide Itoh
    • Organizer
      The 7th International Student Conference at Ibaraki University
    • Place of Presentation
      茨城県阿見町
    • Year and Date
      2011-12-04
    • Related Report
      2011 Annual Research Report
  • [Presentation] Analysis of the Behavior of hydrogen in the vicinity of crack tip in 7075 and 6061 aluminum alloys2011

    • Author(s)
      Goroh Itoh, Hideki Iwahashi, Yuji Hatano
    • Organizer
      The 7th International Student Conference at Ibaraki University
    • Place of Presentation
      茨城県阿見町
    • Year and Date
      2011-12-03
    • Related Report
      2012 Final Research Report 2011 Annual Research Report
  • [Presentation] Effect of intermetallic compound particles on the behavior of hydrogen2011

    • Author(s)
      Takahito Watakabe, Masahiko Nakano, Goroh Itoh
    • Organizer
      The 7th International Student Conference at Ibaraki University in aluminum
    • Place of Presentation
      茨城県阿見町
    • Year and Date
      2011-12-03
    • Related Report
      2012 Final Research Report
  • [Presentation] Effect of intermetallic compound particles on the behavior of hydrogen in aluminum2011

    • Author(s)
      Takahito Watakabe, Masahiko Nakano, Goroh Itoh
    • Organizer
      The 7th International Student Conference at Ibaraki University
    • Place of Presentation
      茨城県阿見町
    • Year and Date
      2011-12-03
    • Related Report
      2011 Annual Research Report
  • [Presentation] Behavior analysis on the desorption of hydrogen in an Al-Mg alloy by means of hydrogen microprint technique2011

    • Author(s)
      Katsuhiro Saitoh, Ryoto Koyama, Tomohiro Tsutsumi, Goroh Itoh
    • Organizer
      The 7th International Student Conference at Ibaraki University
    • Place of Presentation
      茨城県阿見町
    • Year and Date
      2011-12-03
    • Related Report
      2011 Annual Research Report
  • [Presentation] Behavior of hydrogen in electrolytically charged SCM435 steel2011

    • Author(s)
      Nobuhiro Miyata, Yuya Masuda, Tomohiro Tsutsumi, Goroh Itoh
    • Organizer
      The 7th International Student Conference at Ibaraki University
    • Place of Presentation
      茨城県阿見町
    • Year and Date
      2011-12-03
    • Related Report
      2011 Annual Research Report
  • [Presentation] 水素マイクロプリント法によるAl-Mg合金中の水素の放出挙動解析2011

    • Author(s)
      伊藤吾朗, 齋藤勝大, 小山僚人, 堤友浩
    • Organizer
      軽金属学会第121回秋期大会
    • Place of Presentation
      東京都新宿区
    • Year and Date
      2011-11-12
    • Related Report
      2011 Annual Research Report
  • [Presentation] アルミニウム合金におけるき裂先端近傍の水素の挙動2011

    • Author(s)
      伊藤吾朗, 岩橋秀樹, 渡壁尚仁, 伊藤伸英
    • Organizer
      軽金属学会第121回秋期大会
    • Place of Presentation
      東京都新宿区
    • Year and Date
      2011-11-12
    • Related Report
      2011 Annual Research Report
  • [Presentation] アルミニウムにおける環境水素の挙動に及ぼす金属間化合物の影響2011

    • Author(s)
      伊藤吾朗, 渡壁尚仁, 中野雅彦
    • Organizer
      軽金属学会第121回秋期大会
    • Place of Presentation
      東京都新宿区
    • Year and Date
      2011-11-12
    • Related Report
      2011 Annual Research Report
  • [Presentation] 電解チャージしたSCM435鋼中の水素の挙動2011

    • Author(s)
      宮田修宏, 増田勇也, 堤友浩, 伊藤吾朗
    • Organizer
      日本鉄鋼協会第162回秋季講演大会
    • Place of Presentation
      吹田市
    • Year and Date
      2011-09-20
    • Related Report
      2011 Annual Research Report
  • [Presentation] アルミニウム合金中における金属間化合物の水素放出挙動への影響2011

    • Author(s)
      中野雅彦, 渡壁尚仁, 伊藤吾朗
    • Organizer
      軽金属学会第120回春期大会
    • Place of Presentation
      名古屋市
    • Year and Date
      2011-05-22
    • Related Report
      2011 Annual Research Report
  • [Presentation] アルミニウム合金における晶出第二相からの水素侵入挙動2011

    • Author(s)
      伊藤吾朗, 渡壁尚仁, 波多野雄治
    • Organizer
      軽金属学会第120回春期大会
    • Place of Presentation
      名古屋市
    • Year and Date
      2011-05-22
    • Related Report
      2011 Annual Research Report
  • [Presentation] 7075および6061アルミニウム合金におけるき裂先端近傍の水素挙動2011

    • Author(s)
      伊藤吾朗, 岩橋秀樹, 渡壁尚仁, 車田亮, 波多野雄治
    • Organizer
      軽金属学会第120回春期大会
    • Place of Presentation
      名古屋市
    • Year and Date
      2011-05-21
    • Related Report
      2011 Annual Research Report
  • [Presentation] 電解チャージしたアルミニウム合金中の環境水素の挙動2011

    • Author(s)
      堤友浩, 伊藤吾朗, 伊藤伸英
    • Organizer
      軽金属学会第120回春期大会
    • Place of Presentation
      名古屋市
    • Year and Date
      2011-05-21
    • Related Report
      2011 Annual Research Report
  • [Presentation] Behavior of Hydrogen in Auminum2010

    • Author(s)
      Goroh Itoh
    • Organizer
      The 12th International Conference on Aluminium Alloys
    • Place of Presentation
      ホテルパシフィコ横浜、横浜市
    • Year and Date
      2010-09-08
    • Related Report
      2010 Annual Research Report
  • [Presentation] Visualization of Diffusive hydrogen in Auminum2010

    • Author(s)
      Takahito Watakabe, Goroh Itoh, Yuji Hatano
    • Organizer
      The 12th International Conference on Aluminium Alloys
    • Place of Presentation
      ホテルパシフィコ横浜、横浜市
    • Year and Date
      2010-09-07
    • Related Report
      2010 Annual Research Report
  • [Presentation] Visualization of Diffusive hydrogen2010

    • Author(s)
      Takahito Watakabe, Goroh Itoh, Yuji Hatano
    • Organizer
      The 7th Pacific Rim International Conference on Advanced Materials and Processing
    • Place of Presentation
      Cairns Convention Centre, オーストラリア, ケアンズ市
    • Year and Date
      2010-08-03
    • Related Report
      2010 Annual Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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