Surface nano crystallization of AISI 304 stainless steel induced by surface mechanical attrition treatment - II. Grain refinement mechanism

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	Surface nano crystallization of AISI 304 stainless steel induced by surface mechanical attrition treatment - II. Grain refinement mechanism
	Zhang, HW ; Liu, G ; Hei, ZK ; Lu, J ; Lu, K
通讯作者	Liu, G()
	2003-04-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	39 期号:4 页码:347-350
摘要	Nanostructured surface layer was synthesized on an AISI 304 stainless steel by using surface mechanical attrition treatment (SMAT), the microstructural evolution was examined by using the transmission electron microscope (TEM). A grain refinement mechanism was proposed as follows: dislocations slip in the {111} plane and intersect to form dislocation grids. One-system twins form and develop gradually to multi-system ones. Twin-twin intersections reduce the grain size and induce martensite transformation. With the increment of the twin systems and the enhancement of the twin intersection activities, grains are further refined. Finally, nano-scale martensite phase with equaixed shape and random crystallographic orientations forms upon the much larger strain, high strain rate and multidirectional repeated loads.
关键词	surface mechanical attrition treatment AISI 304 stainless steel surface nanocrystallization grain refinement mechanism
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:000182921300003
出版者	SCIENCE CHINA PRESS
引用统计	被引频次：8[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/321006/116045
专题	中国科学院金属研究所
通讯作者	Liu, G
作者单位	1.Chinese Acad Sci, Met Res Inst, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Dalian Maritime Univ, Inst Mat & Technol, Dalian 116026, Peoples R China 3.Univ Technol Troyes, LASMIS, F-10000 Troyes, France
推荐引用方式 GB/T 7714	Zhang, HW,Liu, G,Hei, ZK,et al. Surface nano crystallization of AISI 304 stainless steel induced by surface mechanical attrition treatment - II. Grain refinement mechanism[J]. ACTA METALLURGICA SINICA,2003,39(4):347-350.
APA	Zhang, HW,Liu, G,Hei, ZK,Lu, J,&Lu, K.(2003).Surface nano crystallization of AISI 304 stainless steel induced by surface mechanical attrition treatment - II. Grain refinement mechanism.ACTA METALLURGICA SINICA,39(4),347-350.
MLA	Zhang, HW,et al."Surface nano crystallization of AISI 304 stainless steel induced by surface mechanical attrition treatment - II. Grain refinement mechanism".ACTA METALLURGICA SINICA 39.4(2003):347-350.