Degradation of TiN coatings under cyclic loading

被引:65
作者
Cairney, JM [1 ]
Tsukano, R
Hoffman, MJ
Yang, M
机构
[1] Univ New S Wales, Dept Mat Sci & Engn, Sydney, NSW 2052, Australia
[2] Tokyo Metropolitan Univ, Dept Mech Engn, Hachioji, Tokyo 1920397, Japan
关键词
nanoindentation; coatings; focused ion beam; fatigue test;
D O I
10.1016/j.actamat.2004.03.022
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Degradation of TiN coatings under cyclic contact loading was investigated by repeatedly loading with a 5 mum radius spherical-tipped conical diamond indenter to loads of up to 400 mN. Methods were established to eliminate the effects of creep and thermal drift to obtain data representing the degradation in the films. Based on microstructural observations of cross-sections prepared using FIB milling, it is proposed that cyclic degradation of the coating occurs via frictional degradation at the columnar grain boundaries. Existing models describing indentation are extended to describe the contact fatigue of TiN. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:3229 / 3237
页数:9
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