Law of crack growth life for P92 steel under the conditions of creep-fatigue multiplication and projection of the threshold temperature of creep crack growth based on this law

A. T. Yokobori, R. Sugiura, S. Kimoto, D. Yoshino, T. Matsuzaki

研究成果: Conference contribution

6 引用 (Scopus)

抜粋

W-added 9Cr ferritic heat-resistant steels, ASME grade P92, are used under the high temperature creep-fatigue condition. Concerning the maintenance of the operational safety and minimizing operational costs, it is necessary to construct a law of predicting the crack growth life by clarifying the dominant factors of the crack growth life under the condition of creep-fatigue multiplication (the effect of stress holding time on the time-dependent fracture). In this study, crack growth tests under the conditions of creep-fatigue multiplication were conducted with various conditions of stress holding time, applied stress and temperatures. As a result, a unified law of predicting the crack growth life under the conditions of creep-fatigue multiplication was derived based on the concept of Q* with the transition function of crack growth life from fatigue to creep.

元の言語English
ホスト出版物のタイトルProceedings of the ASME Pressure Vessels and Piping Conference 2009 - Materials and Fabrication
ページ1451-1460
ページ数10
エディションPART B
DOI
出版物ステータスPublished - 2010 6 7
イベント2009 ASME Pressure Vessels and Piping Conference - Prague, Czech Republic
継続期間: 2009 7 262009 7 30

出版物シリーズ

名前American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
番号PART B
6
ISSN(印刷物)0277-027X

Other

Other2009 ASME Pressure Vessels and Piping Conference
Czech Republic
Prague
期間09/7/2609/7/30

ASJC Scopus subject areas

  • Mechanical Engineering

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  • これを引用

    Yokobori, A. T., Sugiura, R., Kimoto, S., Yoshino, D., & Matsuzaki, T. (2010). Law of crack growth life for P92 steel under the conditions of creep-fatigue multiplication and projection of the threshold temperature of creep crack growth based on this law. : Proceedings of the ASME Pressure Vessels and Piping Conference 2009 - Materials and Fabrication (PART B 版, pp. 1451-1460). (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; 巻数 6, 番号 PART B). https://doi.org/10.1115/PVP2009-77989