The results show that the microstructure of Ni21+20%WC+0.5%CeO2 cladding layer is fine,and the abrasive-wearproperty under high temperature is best.

• 结果表明；Ni21+20%25WC+0.；5%25CeO2熔覆层组织细小；高温干摩擦磨损性能最好。