Creep crack growth analysis of welded joints for high cr heat resisting steel

M. Tubuchi, H. Hongo, T. Watanabe, A. T. Yokobori

    研究成果: Conference contribution

    7 被引用数 (Scopus)

    抄録

    The creep strength of weldment for high Cr ferritic steels decreases due to Type IV damages in the heat affected zone during long-term services at high temperatures. It is important to predict initiation and growth of creep voids and cracks in weldment. This paper clarified the Type IV crack initiation and growth properties in fine-grained HAZ of weldments for tungsten strengthened high Cr steels. On the basis of experimental results, the computational simulation for Type IV crack growth behavior was conducted. The effect of multiaxial stress condition on vacancy diffusion and crack initiation was discussed.

    本文言語English
    ホスト出版物のタイトルFatigue and Fracture Mechanics
    ホスト出版物のサブタイトル35th Volume
    出版社ASTM International
    ページ93-101
    ページ数9
    ISBN(印刷版)0803134061, 9780803134065
    出版ステータスPublished - 2007 1 1
    イベント35th ASTM National Symposium on Fatigue and Fracture Mechanics - Reno, NV, United States
    継続期間: 2005 5 182005 5 20

    出版物シリーズ

    名前ASTM Special Technical Publication
    1480 STP
    ISSN(印刷版)0066-0558

    Other

    Other35th ASTM National Symposium on Fatigue and Fracture Mechanics
    CountryUnited States
    CityReno, NV
    Period05/5/1805/5/20

    ASJC Scopus subject areas

    • Materials Science(all)

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