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Effect of Carbon-Doping on Microstructure and Friction/Wear Behaviors of TiB2 Films

Authors :
Xiaojing Xu
Zhen Fan
Xin Lan Sheng
Xi Ling Xin
Chun Hang Yu
Dan Chen
Kun Tian
Source :
Materials Science Forum. 687:621-624
Publication Year :
2011
Publisher :
Trans Tech Publications, Ltd., 2011.

Abstract

In this paper, both the TiB2/SiC bilayer films and the carbon-doped TiB2(TiB2-C)/SiC bilayer films (SiC films as interlayer) were successfully deposited on quenched Cr12MoV steel substrate through magnetron sputtering technology, and the carbon-doping effect on microstructure and friction/wear properties of TiB2films were investigated. The results show that the doped-carbon presented in manner of sp3C-C and sp2C-C bonds i.e. DLC (diamond-like carbon). As sliding against steel balls under dry frictional condition, the doped-carbon strongly decreased the friction coefficient of the films and the material transfer from the friction pairs to the films. At the same time, the doped-carbon reduced the wear rate of the films, the wear rate of the TiB2films and the TiB2-C films were both in the magnitude order of 10−5 mm3m−1N−1, this is due to more material transfer significantly adhered on TiB2films than on TiB2-C films.

Details

ISSN :
16629752
Volume :
687
Database :
OpenAIRE
Journal :
Materials Science Forum
Accession number :
edsair.doi...........01c2e2259ba873270ec6be39efd191ef