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Nanostructure formation mechanism of alpha-titanium using SMAT
Zhu, KY; Vassel, A; Brisset, F; Lu, K; Lu, J
通讯作者Lu, J()
2004-08-16
发表期刊ACTA MATERIALIA
ISSN1359-6454
卷号52期号:14页码:4101-4110
摘要A nanostructured surface layer up to 50 mum thick was produced on commercially pure titanium using surface mechanical attrition treatment (SMAT). The microstructural features of the surface layer produced by SMAT were systematically characterized by cross-sectional optical microscopy observations, transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM) investigations. The grain refinement process, accompanied by an increase in strain in the surface layer, involves: (1) the onset of twins and the intersection of twin systems, (2) the formation of dislocation walls, (3) the nucleation of microbands associated with the splitting of dislocation walls, (4) the subdivision of microbands into low angle disoriented blocks and then highly disoriented polygonal submicronic grains, and (5) further breakdown of submicronic polygonal grains into randomly oriented nanograins. The final grain refinement step to form nanograins has been discussed on the basis of a recrystallization process. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
关键词nanostructure recrystallization alpha-titanium SMAT
DOI10.1016/j.actamat.2004.05.023
收录类别SCI
语种英语
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号WOS:000223389800004
出版者PERGAMON-ELSEVIER SCIENCE LTD
引用统计
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/81534
通讯作者Lu, J
作者单位1.Univ Technol Troyes, CNRS, FRE 2719, LASMIS, Troyes, France
2.Off Natl Etud & Rech Aerosp, Mat Syst & Composites Dept, F-92322 Chatillon, France
3.Off Natl Etud & Rech Aerosp, CNRS, LEM, F-92322 Chatillon, France
4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
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Zhu, KY,Vassel, A,Brisset, F,et al. Nanostructure formation mechanism of alpha-titanium using SMAT[J]. ACTA MATERIALIA,2004,52(14):4101-4110.
APA Zhu, KY,Vassel, A,Brisset, F,Lu, K,&Lu, J.(2004).Nanostructure formation mechanism of alpha-titanium using SMAT.ACTA MATERIALIA,52(14),4101-4110.
MLA Zhu, KY,et al."Nanostructure formation mechanism of alpha-titanium using SMAT".ACTA MATERIALIA 52.14(2004):4101-4110.
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