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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
Corresponding AuthorLiu, G()
2003-04-11
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume39Issue:4Pages:347-350
AbstractNanostructured 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.
Keywordsurface mechanical attrition treatment AISI 304 stainless steel surface nanocrystallization grain refinement mechanism
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000182921300003
PublisherSCIENCE CHINA PRESS
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/116045
Collection中国科学院金属研究所
Corresponding AuthorLiu, G
Affiliation1.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
Recommended Citation
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.
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