Effects of Annealed Treatment on Structure and Performance of WC-DLC Films

Liu, Zheng-bing, Zhou, Shengguo, Wu, Yang-min and Wang, Shuncai (2017) Effects of Annealed Treatment on Structure and Performance of WC-DLC Films. China Surface Engineering, 30 (3), 16-24. (doi:10.11933/j.issn.1007−9289.20161117005).

Abstract

In order to study the effects of annealing on the structure and properties of WC-DLC films, WC-DLC films were deposited on the surface of high speed steel by magnetron sputtering and annealed at different temperatures. The structure, tribological properties and corrosion resistance of the WC-DLC films annealed at different temperatures were systematically characterized, respectively. The results show that the WC-DLC films are amorphous. With the increase of the annealing temperatures, the relative content of sp(3)-C decreases. WC-DLC films annealing at 250. presents the optimal friction performances with wear rate is 1.25x10(-7) mm(3)/Nm in ambient air and is 1.02x10(-7) mm(3)/Nm under deionized water. The corrosion resistance of WC-DLC film has no evident changes under 250. but degrades obviously when the annealing temperature is higher than 250 degrees C. The annealing treatment has important …

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