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A Novel Method for Achieving Gradient Microstructure in a Cu-Al Alloy: Surface Spinning Strengthening (3S)
Ren, Chuan-Xi; Wang, Qiang; Zhang, Zhen-Jun; Zhu, Yan-Kun; Zhang, Zhe-Feng; Wang, Q; Zhang, ZF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China.; Zhang, ZF (reprint author), Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China.
2017-03-01
Source PublicationACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN1006-7191
Volume30Issue:3Pages:212-217
AbstractA new designed surface strengthening method, surface spinning strengthening (3S), was applied to achieve gradient microstructure in the surface layer of a Cu-11 at.% Al alloy. According to the level of grain refinement, the gradient microstructure can be divided into four zones, including nanoscale grain zone, ultra-fine grain zone, fine grain zone and coarse grain zone from the surface to the matrix. Meanwhile, a plenty of grain boundaries and twin boundaries were introduced to inhibit the dislocation motion in the surface layer during the plastic deformation process. Consequently, the hardened layer with a microhardness gradient and high residual compressive stress was produced on the samples, and the yield strength of the Cu-11 at.% Al alloy was effectively improved after 3S processing due to the strengthening effect caused by the gradient microstructure.; A new designed surface strengthening method, surface spinning strengthening (3S), was applied to achieve gradient microstructure in the surface layer of a Cu-11 at.% Al alloy. According to the level of grain refinement, the gradient microstructure can be divided into four zones, including nanoscale grain zone, ultra-fine grain zone, fine grain zone and coarse grain zone from the surface to the matrix. Meanwhile, a plenty of grain boundaries and twin boundaries were introduced to inhibit the dislocation motion in the surface layer during the plastic deformation process. Consequently, the hardened layer with a microhardness gradient and high residual compressive stress was produced on the samples, and the yield strength of the Cu-11 at.% Al alloy was effectively improved after 3S processing due to the strengthening effect caused by the gradient microstructure.
description.department[ren, chuan-xi ; wang, qiang ; zhang, zhen-jun ; zhu, yan-kun ; zhang, zhe-feng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china ; [ren, chuan-xi ; zhang, zhe-feng] univ sci & technol china, sch mat sci & engn, hefei 230026, peoples r china
KeywordCu-al Alloy Surface Spinning Strengthening (3s) Strength Microhardness Gradient Microstructure
Subject AreaMetallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China (NSFC) [51331007, 51501198]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78253
Collection中国科学院金属研究所
Corresponding AuthorWang, Q; Zhang, ZF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China.; Zhang, ZF (reprint author), Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China.
Recommended Citation
GB/T 7714
Ren, Chuan-Xi,Wang, Qiang,Zhang, Zhen-Jun,et al. A Novel Method for Achieving Gradient Microstructure in a Cu-Al Alloy: Surface Spinning Strengthening (3S)[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2017,30(3):212-217.
APA Ren, Chuan-Xi.,Wang, Qiang.,Zhang, Zhen-Jun.,Zhu, Yan-Kun.,Zhang, Zhe-Feng.,...&Zhang, ZF .(2017).A Novel Method for Achieving Gradient Microstructure in a Cu-Al Alloy: Surface Spinning Strengthening (3S).ACTA METALLURGICA SINICA-ENGLISH LETTERS,30(3),212-217.
MLA Ren, Chuan-Xi,et al."A Novel Method for Achieving Gradient Microstructure in a Cu-Al Alloy: Surface Spinning Strengthening (3S)".ACTA METALLURGICA SINICA-ENGLISH LETTERS 30.3(2017):212-217.
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