首页|The synergistic mechanism between graphitized tribofilm and graphitized surface of diamond-like carbon film under different temperature environments
The synergistic mechanism between graphitized tribofilm and graphitized surface of diamond-like carbon film under different temperature environments
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NSTL
Elsevier
? 2022 Elsevier B.V.The tribology characteristics of diamond-like carbon (DLC) film are studied under different experiment temperatures. The outcomes reveal the average COF of DLC film will gradually decrease with the increase of temperature from 25 °C to 225 °C, but its wear rate will gradually increase. Especially at 225 °C, the DLC film is worn through in a very short time. The Raman characterizations imply that the low friction behavior of DLC film may be mainly caused by the synergistic effect of graphitized transfer layer and graphitized worn surface of DLC film as the temperature increases from 25 °C to 175 °C. Further analysis shows that the high wear of DLC film at high temperature may be mainly due to the reduction of wear resistance of worn DLC surface and the formation of soft oxide layer at friction interface.