• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2012 Fiscal Year Final Research Report

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

Research Project

  • PDF
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
Keywords金属材料 / 水素 / 水素脆化 / 拡散 / アルミニウム / 鉄鋼材料
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.

  • Research Products

    (8 results)

All 2013 2012 2011

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (6 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

      doi:10.4028/www.scientific.net/AMR. 409.84

    • 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

      doi:10.4028/www.scientific.net/AMR. 409.92

    • Peer Reviewed
  • [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)
    • Year and Date
      20131202-06
  • [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)
    • Year and Date
      20131013-17
  • [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
  • [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
  • [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
  • [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

URL: 

Published: 2014-08-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi