Microscratch behavior of copper-graphite composites

被引：60

作者：

Xiao, Jin-Kun ^{[1
]}

Zhang, Lei ^{[1
]}

Zhou, Ke-Chao ^{[1
]}

Wang, Xin-Ping ^{[1
]}

机构：

[1] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China

来源：

TRIBOLOGY INTERNATIONAL | 2013年 / 57卷

关键词：

Metal matrix composite; Scratch; Friction model; Wear; SLIDING WEAR BEHAVIOR; FRICTION COEFFICIENT; MECHANISMS; DAMAGE; MODEL;

D O I：

10.1016/j.triboint.2012.07.004

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Microscratch tests were carried out on Cu-graphite composites with graphite content of 0-30 vol% and normal loads of 0.5-2 N. Scratch grooves generated by the plastic deformation of surfaces were characterized for detailed friction and wear mechanisms investigation. The influence of normal load and graphite content on friction coefficient was also studied. It is found that the dominant wear mechanism transits from ploughing to micro-cutting with increasing the normal loads. A friction model for knowing the contribution of ploughing and adhesion components to friction is presented. This friction model is useful in understanding the friction mechanism of composites during scratching. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：38 / 45

页数：8

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