Mechanical and tribological properties related on the texture of TiN films regulated via HiPIMS

Abstract

Since H/E represents elastic strain to failure and H3//E2 represents the resist to plastic deformation, both ratios assure the tribology properties. In this study, at very first time, hardness variation does not agree the Hall-Patch effect and wear rate of the TiN film shows the opposite change with hardness, i.e., tribological properties related to the texture of TiN films, beyond H/E or H3/E2. Base on the XRD and HRTEM results, we proposed a new decipher that texture dominate the hardness and wear properties, i.e., hardness, roughness, wear rate of the TiN film and wear volume of GCr15 ball to some extent that are increase with increasing of texture coefficient at (111) and decreasing of texture coefficient at (200). Further, the tribo-chemical reaction on the friction pair produces a graphite-like tribo-layer with anti-friction effect.