添加适量稀土氧化物,采用自配的熔覆材料在ZL108表面激光熔覆制备了Ni基WC金属陶瓷复合涂层,对熔覆层进行了显微组织分析、显微硬度测量以及室温下的干滑动摩擦磨损试验。结果表明,铝合金上激光熔覆Ni基WC金属陶瓷增强熔覆层无裂纹,组织细小、致密,WC颗粒增强相与基体之间结合良好。室温下熔覆层的磨损主要为显微切削和粘着磨损,干摩擦磨损性能优良。 Addition of appropriate amount of rare earth oxides, using self-made cladding materials in the surface of ZL108 laser cladding Ni-based WC cermet composite coating, cladding layer were microstructure analysis, microhardness measurement and dry at room temperature Sliding friction and wear test. The results show that laser cladding Ni - based WC cermet on aluminum alloy has no crack, the microstructure is fine and compact, and the bonding between WC particles reinforced matrix and matrix is ​​good. The wear of cladding layer at room temperature is mainly micro-cutting and adhesive wear, excellent dry friction and wear properties.