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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
Corresponding AuthorLiu, G()
2005-06-01
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume41Issue:6Pages:577-582
AbstractAfter 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.
Keyword316L stainless steel surface nanocrystallization annealing structure hardness
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000230238800004
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/82362
Corresponding AuthorLiu, G
Affiliation1.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
Recommended Citation
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.
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