Thermal stability of structure and hardness of the surface layer of 316L stainless steel after surface mechanical attrition treatment

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	Thermal stability of structure and hardness of the surface layer of 316L stainless steel after surface mechanical attrition treatment
	Wang, AX ; Liu, G ; Zhou, L ; Wang, K ; Yang, XH ; Li, Y
通讯作者	Liu, G()
	2005-06-01
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	41 期号:6 页码:577-582
摘要	After surface mechanical attrition treatment (SMAT) for 316L stainless steel, a gradient structure in its surface layer with grain size from nano-scale to micro-scale was obtained. The samples before and after the SMAT were annealed in vacuum at different temperatures for different durations, and the structural evolution as well as the hardness and the residual stress variations along the depth were analyzed. Experimental results show that when the annealing temperature is lower than 0.5T(m) (T-m is the melt point), no obvious change can be found for the grain size in the gradient structure, except the martensite transformation in the affected layer due to the release of residual stress, and the hardness distribution along the depth remains unchanged. When the annealing temperature is higher than 0.51(m), recovery, recrystallization and sharp drop of the residual stress occur in the gradient structure, which induce significant reduction of the hardness along the depth. The effect of annealing duration on the structure and property of the SMAT sample is less important comparing with the annealing temperature.
关键词	316L stainless steel surface nanocrystallization annealing structure hardness
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:000230238800004
出版者	SCIENCE PRESS
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/82354
通讯作者	Liu, G
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Fuzhou Univ, Sch Mat Sci & Engn, Fuzhou 350002, Peoples R China 3.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	Wang, AX,Liu, G,Zhou, L,et al. Thermal stability of structure and hardness of the surface layer of 316L stainless steel after surface mechanical attrition treatment[J]. ACTA METALLURGICA SINICA,2005,41(6):577-582.
APA	Wang, AX,Liu, G,Zhou, L,Wang, K,Yang, XH,&Li, Y.(2005).Thermal stability of structure and hardness of the surface layer of 316L stainless steel after surface mechanical attrition treatment.ACTA METALLURGICA SINICA,41(6),577-582.
MLA	Wang, AX,et al."Thermal stability of structure and hardness of the surface layer of 316L stainless steel after surface mechanical attrition treatment".ACTA METALLURGICA SINICA 41.6(2005):577-582.