High temperature oxidation behavior of (Ti, Al)N coating deposited by arc ion plating
(School of Materials Science and Engineering, Harbin Engineering University, Harbin 150001, China)
Abstract: (Ti, Al)N gradient nano-coating was deposited on the surface of 1Cr11Ni2W2MoV stainless steel by the MTP-8-800 arc ion plating equipment. And the oxidation performance at high temperature for 500h was tested under the condition of the surrounding air temperature 700℃. The test results show that, because of the structural features of the （Ti, Al）N coating, the coating becomes the compact and continuous Al2O3 film, which can protect the basis material effectively in the process of the high temperature oxidizing. The oxidation kinetics of the coating accord with parabolic law.
Key words: arc ion plating； (Ti, Al)N gradient nano-coating； oxidation resistant