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使用额定功率为９ｋＷ的连续ＣＯ_２激光在熔渗ＣｕＣｒ粉末冶金料片表面进行原位熔凝合金化，结果表明，２至３ｍｍ厚的ＣｕＣｒ５０合金层内显微组织显著细化，ＣｕＣｒ组元分布均匀，熔凝层的硬度明显高于同组成的粉末冶金材料。这种具均匀细小的显微组织的ＣｕＣｒ５０合金触头工作表面有列高的机械和电器性能。
In-situ fusion alloying was carried out on the surface of infiltrated CuCr powder metallurgy by continuous CO_2 laser with rated power of 9kW. The results show that the microstructure of CuCr50 alloy layer with thickness of 2 to 3mm is remarkably refined and the distribution of CuCr component is uniform , The hardness of the melted layer is obviously higher than that of the powder metallurgy material with the same composition. This CuCr50 alloy contact surface with a uniform and fine microstructure has high mechanical and electrical properties.