Self-sealing wear-resistant coating and preparation method thereof

The invention provides a self-sealing wear-resistant coating and a preparation method thereof, and relates to the technical field of metal coatings, and the self-sealing wear-resistant coating comprises Cr2C3, NiCr, chromium, cerium oxide, yttrium oxide, CoCrMo, BaF2 and modified nano perovskite. The invention further provides a preparation method of the self-sealing wear-resistant coating. The mixed powder is screened, and then thermal spraying powder is obtained; the thermal spraying powder is subjected to plasma spraying on a base material, a primary coating is obtained, and the temperature of ion spraying ranges from 300 DEG C to 330 DEG C; and the primary coating is subjected to heat treatment in a vacuum furnace, and the self-sealing wear-resistant coating is obtained. The bonding capacity of the coating and the base material is high, the film layer is very smooth, and the number of air holes is small. And an enamel layer or a spinel substance can be formed on the surface of the coating, so that the wea