Friction and Wear Reduction in Copper with a Gradient Nano-grained Surface Layer

IMR OpenIR

	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
发表期刊	ACS APPLIED MATERIALS & INTERFACES
ISSN	1944-8244
卷号	10 期号:16 页码:13829-13838
摘要	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.; 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.
部门归属	[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
关键词	Dynamic Plastic-deformation Subsurface Recrystallization Structure Nanocrystalline Ni-w Mechanical-properties Microstructural Evolution Nanocomposite Coatings Sliding Friction Behavior Resistance Alloy
学科领域	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
资助者	National Key R&D Program of China [2017YFA0204401, 2017YFA0204403]; National Natural Science Foundation [51231006]; Key Research Program of Chinese Academy of Sciences [KGZD-EW-T06]
收录类别	SCI
语种	英语
WOS记录号	WOS:000431150900064
引用统计	被引频次：95[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/79356
专题	中国科学院金属研究所
通讯作者	Han, Z (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 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.