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Although diamondlike carbon coatings like WC/a-C:H have a proven history of tribological performance in many mechanical applications, studies have reported that these coatings can sometimes experience high wear rates when operating in lubricants with large concentrations of phosphorous- and sulfur-based additives. In this study, WC/a-C:H and TiC/a-C:H coatings have been tribologically tested against...
The performance of coatings for tribological applications is strongly associated with substrate properties and the presence of lubricants between the contacting faces. In this study, plasma nitriding followed by the application of a hydrogenated Diamond-like Carbon (DLC) film (a-C:H) was coated onto grey cast iron (GCI) substrates using a single thermal cycle. Four distinct reciprocating cylinder-plane...
The basic significance of a method of evaluating the anti-adhesion characteristics of diamond-like carbon (DLC) films by a reciprocating wear test using a high-frequency, linear-oscillation tribometer under a step loading condition was verified with a single test condition, and processes up to the occurrence of delamination were investigated in this study. The failure load, corresponding to the anti-adhesion...
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