Influence of surface finish on fatigue cracking behavior of reactor pressure vessel steel in high temperature water

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	Influence of surface finish on fatigue cracking behavior of reactor pressure vessel steel in high temperature water
	X. Q. Wu; H. Guan; E. H. Han; W. Ke; Y. Katada
	2006
发表期刊	Materials and Corrosion-Werkstoffe Und Korrosion
ISSN	0947-5117
卷号	57 期号:11 页码:868-871
摘要	The low cycle fatigue behavior of a low-alloy reactor pressure vessel (RPV) steel was investigated in high temperature water. Main attention was paid to the effects of surface finish of specimens on fatigue cracking behavior. It was found that the influence of surface finish on fatigue resistance of the steel was strain-rate dependent in high temperature water. Pretty obvious degradation of fatigue resistance appeared at fast strain rate with rougher surface finish. At slow strain rate, surface circumferential scratches promoted crack initiation and propagation. The fracture surface showed relatively flat and slight crack-arrest features. At fast strain rate, surface scratches also promoted crack initiation, but seemed not to dominate crack propagation. The fracture surface showed typical terraced and fan-like features. The above fatigue cracking behavior can be rationalized by a strain-rate dependent environmentally assisted cracking process of low-alloy RPV steel in high temperature water.
部门归属	chinese acad sci, inst met res, environm corros ctr, shenyang 100016, peoples r china. natl inst mat sci, steel res ctr, tsukuba, ibaraki 3050047, japan.;wu, xq (reprint author), chinese acad sci, inst met res, environm corros ctr, 62 wencui rd, shenyang 100016, peoples r china;xqwu@imr.ac.cn
关键词	Environmentally Assisted Cracking Low-cycle Fatigue Low-alloy Corrosion-fatigue Growth-behavior Carbon
URL	查看原文
WOS记录号	WOS:000242549800004
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34583
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Q. Wu,H. Guan,E. H. Han,et al. Influence of surface finish on fatigue cracking behavior of reactor pressure vessel steel in high temperature water[J]. Materials and Corrosion-Werkstoffe Und Korrosion,2006,57(11):868-871.
APA	X. Q. Wu,H. Guan,E. H. Han,W. Ke,&Y. Katada.(2006).Influence of surface finish on fatigue cracking behavior of reactor pressure vessel steel in high temperature water.Materials and Corrosion-Werkstoffe Und Korrosion,57(11),868-871.
MLA	X. Q. Wu,et al."Influence of surface finish on fatigue cracking behavior of reactor pressure vessel steel in high temperature water".Materials and Corrosion-Werkstoffe Und Korrosion 57.11(2006):868-871.