Effect of absorbed hydrogen on the near threshold fatigue crack growth behavior of short crack

Keiko Shishime, Masanobu Kubota, Yoshiyuki Kondo

    研究成果: Contribution to journalConference article査読

    13 被引用数 (Scopus)

    抄録

    Hydrogen is considered to be a possible energy source in the coming future. However, it has been recognized that hydrogen has a detrimental effect on the fatigue strength of metal. The fatigue crack growth characteristic is an important property for the integrity assessment of hydrogen utilization machine. In this report, the effect of hydrogen on the fatigue crack propagation characteristic was studied using low alloy steel, carbon steels and A286 alloy. Especially in this study, very short pre-cracked specimen as small as 0.03 mm deep was used and the near threshold fatigue crack behavior was studied. As a result, materials whose Vickers hardness was higher than 300 were found to be susceptible to absorbed hydrogen.

    本文言語英語
    ページ(範囲)409-412
    ページ数4
    ジャーナルMaterials Science Forum
    567-568
    出版ステータス出版済み - 2 1 2008
    イベント5th International Conference on Materials Structure and Micromechanics of Fracture, MSMF-5 - Brno, チェコ共和国
    継続期間: 6 27 20076 29 2007

    All Science Journal Classification (ASJC) codes

    • 材料科学(全般)
    • 凝縮系物理学
    • 材料力学
    • 機械工学

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