Modeling and quantitative prediction of environmentally assisted cracking based upon a deformation-oxidation mechanism

Tetsuo Shoji, Shengchun Wang, Zhanpeng Lu, Yoichi Takeda, Qunjia Peng, Akira Kai

研究成果: Conference article査読

10 被引用数 (Scopus)

抄録

In order to provide a quantitative tool for predicting EAC growth rates for austenitic alloys such as austenitic stainless steels, Alloys 600 and 182 in simulated LWR environments, a model based upon the synergistic effects of deformation and oxidation at the crack tip has been proposed. In this paper, the effects of hardening, variation of K with crack growth and oxidation kinetics on EAC growth rate are described with special emphasis on field applications. The results imply recent cracking incidences in BWR core shroud and Primary Loop Recirculation (PLR) piping and PWR Vessel Penetrations (VP). In particular, the significance of oxide analysis at the crack tip and also of a kinetic approach to oxidation under stress or strain condition is described. Potential future directions for mitigation of such cracking are discussed.

本文言語English
ページ(範囲)175-184
ページ数10
ジャーナルAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
479
DOI
出版ステータスPublished - 2004 11 17
イベント2004 ASME/JSME Pressure Vessels and Piping Conference - San Diego, CA, United States
継続期間: 2004 7 252004 7 29

ASJC Scopus subject areas

  • 機械工学

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