The analysis of hydrogen diffusion under heat transfer condition around the heat affected zone of welding

K. Takei, A. T. Yokobori

    Research output: Contribution to journalConference articlepeer-review

    3 Citations (Scopus)

    Abstract

    Hydrogen embrittlement causes a crack initiation and brittle fracture. Therefore, it is important to conduct theoretical analysis to predict hydrogen distribution on the basis of reasonable physical model. In this paper, numerical analysis on the hydrogen diffusion and concentration at the localized stress field was conducted to clarify the behavior of hydrogen concentration and the sensitivity of hydrogen embrittlement. Furthermore, on the basis of this analysis, the effect of post weld heat treatment on the release of concentrated hydrogen was analyzed and optimum condition of post and pre heat treatment on the welding was investigated.

    Original languageEnglish
    Pages (from-to)931-936
    Number of pages6
    JournalKey Engineering Materials
    Volume261-263
    Issue numberII
    Publication statusPublished - 2004 Jan 1
    EventAdvances in Fracture and Failure Prevention: Proceedings of the Fifth International Conference on Fracture and Strength of Solids (FEOFS2003): Second International Conference on Physics and Chemistry of Fracture and Failure Prevention (2nd ICPCF) - Sendai, Japan
    Duration: 2003 Oct 202003 Oct 22

    Keywords

    • Heat affected zone
    • Hydrogen embrittlement
    • Numerical analysis
    • Stress induced diffusion
    • Welding

    ASJC Scopus subject areas

    • Materials Science(all)
    • Mechanics of Materials
    • Mechanical Engineering

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