High Temperature Sliding Wear Property of Ion Plating TiN Coating on 3Cr2W8V Steel Substrate
High temperature sliding wear property of TiN coating on 3Cr2W8V hot work die steel substrate between 500℃ and 700℃ have been investigated.Phase structure and adhesion strength of TiN coating is measured respectively by XRD analysis and scratch test.The worn morphologies and wear mechanism of TiN coating are observed and analyzed.The results show that with increasing of temperature,the wear rates and friction coefficient of TiN coating and substrate increase.The wear resistance of TiN coating is better than that of 3Cr2W8V substrate.Main wear mechanisms of TiN coating are adhesion transfer wear and abrasive wear.Adhesion transfer wear become severer as test temperature increases.