Microtribological studies of different nanocomposite TiC/a-C:H coatings using a modified nanoindentation setup

被引：5
|
作者：
Schwaller, P
Patscheider, J
Kollo, L
Michler, J
机构：
[1] EMPA, Swiss Fed Labs Mat Testing & Res, CH-3602 Thun, Switzerland
[2] EMPA, Swiss Fed Labs Mats Testing & Res, CH-8600 Dubendorf, Switzerland
来源：
TRIBOLOGY LETTERS | 2004年 / 17卷 / 04期
关键词：
microtribology; friction; hard coatings; nanoscratching; nanocomposite TiC/a-C : H;
D O I：
10.1007/s11249-004-8084-y
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The microtribological behavior of different nanocomposite TiC/a-C:H coatings against 100Cr6 (AISI 52100) balls with 250 mum radius has been studied using a modified nanoindentation setup and was compared to the results of macroscopic pin-on-disc ( POD) experiments. First results reveal significant differences between macroscopic friction coefficients mu(POD) determined using POD tests and microscopic friction coefficients mu(micro). On the macroscopic scale low friction coefficients can be obtained for high hardness coatings. On the microscopic scale the high hardness samples induce considerable wear on the steel counter-body leading to high microscopic friction coefficients of around 0.3. For samples with lower hardness no wear has been observed and low microscopic friction coefficients (<0.2) can be achieved.
引用
收藏
页码：757 / 763
页数：7
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