Mechanism of reduction of fretting fatigue limit caused by hydrogen gas in SUS304 austenitic stainless steel

Masanobu Kubota, Kyohei Kuwada, Yasuhiro Tanaka, Yoshiyuki Kondo

    研究成果: Contribution to journalArticle査読

    9 被引用数 (Scopus)

    抄録

    The fretting fatigue strength of pre-strained SUS304 is reduced in hydrogen gas. The mechanism of the reduction is discussed. In hydrogen gas, local adhesion between contacting surfaces occurred and many small cracks were formed at the adhered spots. The major crack propagated from one of the small cracks. The roles of the adhesion in relation to the initiation and propagation of the small cracks were examined by a two-step environment test. When adhesion was prevented by an oxidized film, no failure of the specimen occurred. It can be presumed that the stress conditions were more severe in hydrogen gas than that in air due to local adhesion.

    本文言語英語
    ページ(範囲)1495-1502
    ページ数8
    ジャーナルTribology International
    44
    11
    DOI
    出版ステータス出版済み - 10 2011

    All Science Journal Classification (ASJC) codes

    • Mechanics of Materials
    • Mechanical Engineering
    • Surfaces and Interfaces
    • Surfaces, Coatings and Films

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