Reduction in fretting fatigue strength of austenitic stainless steels due to internal hydrogen

Ryosuke Komoda, Naoto Yoshigai, Masanobu Kubota, Jader Furtado

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    2 Citations (Scopus)

    Abstract

    Fretting fatigue is one of the major factors in the design of hydrogen equipment. The effect of internal hydrogen on the fretting fatigue strength of austenitic stainless steels was studied. The internal hydrogen reduced the fretting fatigue strength. The reduction in the fretting fatigue strength became more significant with an increase in the hydrogen content. The reason for this reduction is that the internal hydrogen assisted the crack initiation. When the fretting fatigue test of the hydrogen-charged material was carried out in hydrogen gas, the fretting fatigue strength was the lowest. Internal hydrogen and gaseous hydrogen synergistically induced the reduction in the fretting fatigue strength of the austenitic stainless steels. In the gaseous hydrogen, fretting creates adhesion between contacting surfaces where severe plastic deformation occurs. The internal hydrogen is activated at the adhered part by the plastic deformation which results in further reduction of the crack initiation limit.

    Original languageEnglish
    Title of host publication11th International Fatigue Congress
    PublisherTrans Tech Publications
    Pages891-896
    Number of pages6
    ISBN (Print)9783038350088
    DOIs
    Publication statusPublished - Jan 1 2014
    Event11th International Fatigue Congress, FATIGUE 2014 - Melbourne, VIC, Australia
    Duration: Mar 2 2014Mar 7 2014

    Publication series

    NameAdvanced Materials Research
    Volume891-892
    ISSN (Print)1022-6680

    Other

    Other11th International Fatigue Congress, FATIGUE 2014
    Country/TerritoryAustralia
    CityMelbourne, VIC
    Period3/2/143/7/14

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

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