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Friction and Wear Reduction in Copper with a Gradient Nano-grained Surface Layer
Chen, X; Han, Z; Lu, K; Han, Z (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
2018-04-25
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume10Issue:16Pages:13829-13838
AbstractA gradient nano-grained (GNG) surface layer is fabricated on a commercial-purity Cu sample, in which a significant reduction in the coefficient of friction and the wear loss is obtained compared to the coarse-grained and the nano grained counterparts. A novel mild ploughing mechanism without subsurface damage has been identified in the GNG sample, giving rise to a much reduced wear rate. Sliding induced surface deformation brings about the unique inhomogeneous substructure in the GNG Cu: the topmost layer persists with nanograins without being oxidized, underneath which deformation is well accommodated by grain coarsening adjacent to the dynamic recrystallization layer. Both subsurface structural evolution and stress field model confirm that sliding-induced strain localization is suppressed, which is responsible for the superior friction and wear behaviors of the GNG Cu.; A gradient nano-grained (GNG) surface layer is fabricated on a commercial-purity Cu sample, in which a significant reduction in the coefficient of friction and the wear loss is obtained compared to the coarse-grained and the nano grained counterparts. A novel mild ploughing mechanism without subsurface damage has been identified in the GNG sample, giving rise to a much reduced wear rate. Sliding induced surface deformation brings about the unique inhomogeneous substructure in the GNG Cu: the topmost layer persists with nanograins without being oxidized, underneath which deformation is well accommodated by grain coarsening adjacent to the dynamic recrystallization layer. Both subsurface structural evolution and stress field model confirm that sliding-induced strain localization is suppressed, which is responsible for the superior friction and wear behaviors of the GNG Cu.
description.department[chen, xiang ; han, zhong ; lu, ke] chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, liaoning, peoples r china ; [chen, xiang] kit, iam, 12 kaiserstr, d-76131 karlsruhe, germany
KeywordDynamic Plastic-deformation Subsurface Recrystallization Structure Nanocrystalline Ni-w Mechanical-properties Microstructural Evolution Nanocomposite Coatings Sliding Friction Behavior Resistance Alloy
Subject AreaNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Funding OrganizationNational Key R&D Program of China [2017YFA0204401, 2017YFA0204403]; National Natural Science Foundation [51231006]; Key Research Program of Chinese Academy of Sciences [KGZD-EW-T06]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79356
Collection中国科学院金属研究所
Corresponding AuthorHan, Z (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
GB/T 7714
Chen, X,Han, Z,Lu, K,et al. Friction and Wear Reduction in Copper with a Gradient Nano-grained Surface Layer[J]. ACS APPLIED MATERIALS & INTERFACES,2018,10(16):13829-13838.
APA Chen, X,Han, Z,Lu, K,&Han, Z .(2018).Friction and Wear Reduction in Copper with a Gradient Nano-grained Surface Layer.ACS APPLIED MATERIALS & INTERFACES,10(16),13829-13838.
MLA Chen, X,et al."Friction and Wear Reduction in Copper with a Gradient Nano-grained Surface Layer".ACS APPLIED MATERIALS & INTERFACES 10.16(2018):13829-13838.
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