Friction and wear of nanostructured metals created by large strain extrusion machining

被引：46
|
作者：
Iglesias, P.
Bermudez, M. D.
Moscoso, W.
Rao, B. C.
Shankar, M. R.
Chandrasekar, S.
机构：
[1] Univ Politecn Cartagena, Dept Ingn Mat & Fabricac, Grp Ciencia Mat & Ingn Met, Cartagena 30202, Spain
[2] Purdue Univ, Sch Ind Engn, W Lafayette, IN 47907 USA
来源：
WEAR | 2007年 / 263卷
关键词：
wear; friction; nanocrystalline structure; copper; titanium;
D O I：
10.1016/j.wear.2006.11.040
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Tribological behavior of nanocrystalline oxygen-free high conductivity (OFHC( copper and commercially pure titanium produced by large strain extrusion machining (LSEM) is compared with the coarse grained counterparts. Friction and wear of these materials have been determined using a pin-on-disk tribometer, sliding against AISI 52100 steel pins. Although friction coefficients are very similar, microstructure refinement reduces wear factors for these conditions. Wear mechanisms are discussed from optical microscopy and SEM observation of wear tracks, wear debris morphology and transfer tribolayers. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：636 / 642
页数：7
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