Crack growth characteristics and damage in 12Cr steel under high temperature creep and creep-fatigue conditions

O. Yokota, R. Sugiura, M. Yoda, A. T. Yokobori, T. Yokobori

    研究成果: Conference contribution

    1 被引用数 (Scopus)

    抄録

    The combined effects of temperature and frequency on the crack growth rate and failure life were investigated using the compact tension specimens of 12Cr steel under creep and creep-fatigue conditions. The creep-fatigue tests were performed by introducing the hold time at the maximum load. At higher frequency where the crack growth rate near the initial stress intensity factor or reciprocal of failure life is proportional to the frequency, the cycle-dependent fatigue process is dominant. The Vickers hardness around the path of crack growth was obtained as a measure of damage during creep and creep-fatigue. Complex fracture surface or branched crack is attributed to the decrease in hardness for creep-fatigue interaction and is characterized by fractal analysis.

    本文言語English
    ホスト出版物のタイトル11th International Conference on Fracture 2005, ICF11
    ページ3203-3208
    ページ数6
    出版ステータスPublished - 2005 12 1
    イベント11th International Conference on Fracture 2005, ICF11 - Turin, Italy
    継続期間: 2005 3 202005 3 25

    出版物シリーズ

    名前11th International Conference on Fracture 2005, ICF11
    5

    Other

    Other11th International Conference on Fracture 2005, ICF11
    CountryItaly
    CityTurin
    Period05/3/2005/3/25

    ASJC Scopus subject areas

    • Geotechnical Engineering and Engineering Geology

    フィンガープリント 「Crack growth characteristics and damage in 12Cr steel under high temperature creep and creep-fatigue conditions」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

    引用スタイル