The focus was on the wear mechanism and high-temperature oxidation behavior of metal matrix composite (MMC) coatings. With increasing TiC, the microhardness of the MMC coatings increased to 1353.08 HV 0.5 . However, excessive TiC will initiate fatigue cracks. 20 wt% TiC coating reduced wear rate by 99.48 % compared to the substrate, because of fine-grain reinforcement and hard phases. At 600 ℃, a high-density TiO 2 oxide film and a Cr 2 O 3 friction film synergistically reconstructed on the coating surface, resulting in the lowest wear rate ...
