Formation of nanostructured surface layer on AISI 304 stainless steel by means of surface mechanical attrition treatment

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	Formation of nanostructured surface layer on AISI 304 stainless steel by means of surface mechanical attrition treatment
	H. W. Zhang ; Z. K. Hei ; G. Liu ; J. Lu ; K. Lu
刊名	Acta Materialia
	2003
卷号	51 期号:7 页码:1871-1881
关键词	surface mechanical attrition treatment nanostructured material grain refinement mechanism AISI 304 stainless steel mechanical twins deformation-induced transformation microstructural evolution room-temperature strain state fcc alloys nanocrystallization fe behavior grain
ISSN号	1359-6454
中文摘要	A nanostructured surface layer was formed on an AISI 304 stainless steel with low stacking-fault energy by means of the surface mechanical attrition treatment (SMAT). The microstructure of the surface layer of the SMATed sample was characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), and cross-sectional TEM observation was performed to reveal the deformation-driven grain refinement mechanism for the f.c.c. materials with very low stacking-fault energy during SMAT. The grain refinement process in the surface layer involves formation of planar dislocation arrays and twins in deformed grains, twin-twin intersections leading to grain subdivision and a martensite transformation as well, and formation of randomly orientated refined crystallites. The formation of nanocrystallites in the top surface layer was ascribed to the much large strain and strain rate, as well as the multidirectional repetitive loading. (C) 2003 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
原文出处	://WOS:000182138200004
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/36159]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	H. W. Zhang,Z. K. Hei,G. Liu,et al. Formation of nanostructured surface layer on AISI 304 stainless steel by means of surface mechanical attrition treatment[J]. Acta Materialia,2003,51(7):1871-1881.
APA	H. W. Zhang,Z. K. Hei,G. Liu,J. Lu,&K. Lu.(2003).Formation of nanostructured surface layer on AISI 304 stainless steel by means of surface mechanical attrition treatment.Acta Materialia,51(7),1871-1881.
MLA	H. W. Zhang,et al."Formation of nanostructured surface layer on AISI 304 stainless steel by means of surface mechanical attrition treatment".Acta Materialia 51.7(2003):1871-1881.