Fretting wear behavior of nanocrystalline surface layer of copper under dry condition

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	Fretting wear behavior of nanocrystalline surface layer of copper under dry condition
	Y. S. Zhang; Z. Han; K. Lu
	2008
发表期刊	Wear
ISSN	0043-1648
卷号	265 期号:3-4 页码:396-401
摘要	Unlubricated fretting tests were performed with a nanocrystalline surface layer of a 99.99 wt.% copper fabricated by means of surface mechanical attrition treatment (SMAT), in comparison with a coarse-grained (CG) copper. The measured friction and wear data show that the fretting wear resistance is markedly enhanced with the nanocrystalline surface layer relative to the CG counterpart. The friction coefficient and wear volume of the SMAT Cu are lower than that of the CG Cu. For both samples, the friction coefficients and wear volumes increase with an increasing applied load and fretting frequency. A rapid increase of the friction coefficient and wear volume under an applied load above a critical value (30 N for the SMAT Cu and 20 N for the CG Cu) is noticed, corresponding to the formation of a continuous oxide layer between two contact surfaces. Also two sharp increases of the friction coefficient and wear volume at fretting frequencies of 50 Hz and 175 Hz were observed for the SMAT and the CG Cu. The former is correlated with the formation of a continuous oxide layer, while the latter corresponds to wearing away of the oxide layer. (C) 2007 Elsevier B.V. All rights reserved.
部门归属	[zhang, y. s.; han, z.; lu, k.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;han, z (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;zhonghan@imr.ac.cn
关键词	Nanocrystalline Metals Fretting Unlubricated Friction Copper Surface Mechanical Attrition Treatment (Smat) Mechanical Attrition Treatment Ion-implantation Ti-b Temperatures Coatings Alloy Films Iron
URL	查看原文
WOS记录号	WOS:000256598900016
引用统计	被引频次：69[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/321006/33353
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. S. Zhang,Z. Han,K. Lu. Fretting wear behavior of nanocrystalline surface layer of copper under dry condition[J]. Wear,2008,265(3-4):396-401.
APA	Y. S. Zhang,Z. Han,&K. Lu.(2008).Fretting wear behavior of nanocrystalline surface layer of copper under dry condition.Wear,265(3-4),396-401.
MLA	Y. S. Zhang,et al."Fretting wear behavior of nanocrystalline surface layer of copper under dry condition".Wear 265.3-4(2008):396-401.