Effect of deep cooling times on the architecture and performance of DLC coating system

Abstract At present, the research on deep cooling times mainly focuses influence of a certain material. The treatment process coating composite system insulation time, temperature, and rate, there are few studies system. This paper preliminarily explored cryogenic changing structure properties diamond-like carbon film (DLC) an M35 high-speed steel surface under condition total holding time. When two treatments were carried out at -140°C -196°C, content SP3 hybrid bond decreased. bonding force DLC is improved after several treatments, but wear resistance decreases with further increase times. has reference significance for improving coating.