Healing of hydrogen attacked crack in austenite stainless steel by heat treatment

IMR OpenIR

	Healing of hydrogen attacked crack in austenite stainless steel by heat treatment
	Li, XG ; Dong, CF ; Chen, H ; Chu, WY
通讯作者	Li, XG()
	2001-10-01
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	37 期号:10 页码:1093-1096
摘要	The specimens of 304 austenite stainless steel with the hydrogen attacked bubbles or cracks were heat treated under 600 degreesC for 6 h. The SEM and TEM observations on the specimens before and after the heat treatment show that the bubbles or cracks can be healed completely by heat treatment. The healing of hydrogen attacked bubbles or cracks is closely related to heat diffusion of Fe and C atoms in austenite. The driving force of crack healing results from the plastic deforming energy E-s induced by the growth of hydrogen attacked bubbles or cracks. The critical condition of healing of bubbles or cracks is E-s greater than or equal to 2gamma/r (where gamma is the surface tension, r is the radius of bubbles or half length of crack). During healing of the hydrogen attacked bubbles or cracks, the recovery, polygonization and recrystallization of the sub-grain were also taken place.
关键词	stainless steel hydrogen attack crack healing
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000174488400019
出版者	SCIENCE CHINA PRESS
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/321006/112885
专题	中国科学院金属研究所
通讯作者	Li, XG
作者单位	1.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, XG,Dong, CF,Chen, H,et al. Healing of hydrogen attacked crack in austenite stainless steel by heat treatment[J]. ACTA METALLURGICA SINICA,2001,37(10):1093-1096.
APA	Li, XG,Dong, CF,Chen, H,&Chu, WY.(2001).Healing of hydrogen attacked crack in austenite stainless steel by heat treatment.ACTA METALLURGICA SINICA,37(10),1093-1096.
MLA	Li, XG,et al."Healing of hydrogen attacked crack in austenite stainless steel by heat treatment".ACTA METALLURGICA SINICA 37.10(2001):1093-1096.