Preprint Article Version 1 This version not peer reviewed

The Wear Resistance of Cryogenically Treated Diamond-Like Carbon Films

Version 1 : Received: 7 December 2016 / Approved: 7 December 2016 / Online: 7 December 2016 (11:13:10 CET)

How to cite: Han, L.; Lin, C.; Shih, Y. The Wear Resistance of Cryogenically Treated Diamond-Like Carbon Films. Preprints 2016, 2016120039 (doi: 10.20944/preprints201612.0039.v1). Han, L.; Lin, C.; Shih, Y. The Wear Resistance of Cryogenically Treated Diamond-Like Carbon Films. Preprints 2016, 2016120039 (doi: 10.20944/preprints201612.0039.v1).

Abstract

This study explored the effects of cryogenic treatment on the microstructure, hardness, and wear-resistance of diamond-like carbon (DLC) by cryogenically treating NAK 80 mold steel coated with DLC. Raman spectroscopy analyzed the structure of the DLC film. Nanoindenter analyzed the hardness and Young’s modulus of the film, and their relationship determined the wear resistance. Wear test assessed the wear rate and friction coefficient of the DLC film. The results showed that cryogenic treatment increased the rate of carbide precipitation and refined the grain structure. Raman spectroscopy indicated that the Raman intensity rate (ID/IG) of treated DLC films was smaller than those without cryogenic treatment. When the sp3 bond increased, the hardness and wear-resistance of the DLC film also increased.

Subject Areas

Cryogenic treatment; wear resistance; Raman intensity rate

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