Threshold stress intensity factor for hydrogen-assisted cracking of CR-MO steel used as stationary storage buffer of a hydrogen refueling station

T. Matsumoto, Masanobu Kubota, S. Matsuoka, P. Ginet, J. Furtado, F. Barbier

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)

    Abstract

    In order to determine appropriate value for threshold stress intensity factor for hydrogen-assisted cracking (KIH), constant-displacement and rising-load tests were conducted in high-pressure hydrogen gas for JIS-SCM435 low alloy steel (Cr-Mo steel) used as stationary storage buffer of a hydrogen refuelling station with 0.2% proof strength and ultimate tensile strength equal to 772 MPa and 948 MPa respectively. Thresholds for crack arrest under constant displacement and for crack initiation under rising load were identified. The crack arrest threshold under constant displacement was 44.3 MPa m1/2 to 44.5 MPa m1/2 when small-scale yielding and plane-strain criteria were satisfied and the crack initiation threshold under rising load was 33.1 MPa m1/2 to 41.1 MPa m1/2 in 115 MPa hydrogen gas. The crack arrest threshold was roughly equivalent to the crack initiation threshold although the crack initiation threshold showed slightly more conservative values. It was considered that both test methods could be suitable to determine appropriate value for KIH for this material.

    Original languageEnglish
    Pages (from-to)7422-7428
    Number of pages7
    JournalInternational Journal of Hydrogen Energy
    Volume42
    Issue number11
    DOIs
    Publication statusPublished - Mar 16 2017

    All Science Journal Classification (ASJC) codes

    • Renewable Energy, Sustainability and the Environment
    • Fuel Technology
    • Condensed Matter Physics
    • Energy Engineering and Power Technology

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