激光合金化和熔复是一种激光表面热处理技术。它是以激光束为热源,辐照到金属表面使之熔化,形成熔池,将粉末状合金元素或化合物加到熔池里,在金属表面形成一高浓度的合金层,或者予先在基体金属表面涂一层合金粉末,用激光束照射表面,使合金粉末及基体金属表面熔化,冷却后获得合 Laser alloying and melting complex is a laser surface heat treatment technology. It is a laser beam as a heat source, irradiated to the metal surface to melt, the formation of molten pool, the powder alloy elements or compounds added to the pool, the metal surface to form a high concentration of alloy layer, or prior to the substrate Metal surface coated with a layer of alloy powder, the surface of the laser beam irradiation, the alloy powder and the base metal surface melting, cooled to obtain a combined