通过在钛合金表面激光熔覆镁钴合金, 从而解决钛合金在航天航空领域中材料表面磨损以及材料减震性能不足等问题。分别对激光功率以及镁钴混合比例进行对比实验, 并对实验结果进行检测分析。实验结果表明, 激光功率为235.2 W, 镁钴混合比例为1∶300时, 熔覆效果最为理想。对该条件下的实验样品进行电镜扫描表征和EDS元素分析谱图可知, 钛合金在进行激光熔覆后, 基体中的Ti元素和熔覆层中的Co、Mg元素相互渗透, 且元素在基体和熔覆层中均匀分布。进一步检测结果表明, 熔覆材料完全熔覆到基体表面, 熔覆层中的Co和Mg元素浓度都得到了一定程度的提升。

By laser cladding magnesium-cobalt alloy on the surface of titanium alloy, the problems of wear on the surface of titanium alloy material and insufficient damping performance of the material in the aerospace field are solved. The laser power and magnesium-cobalt mixture ratio were compared and the experimental results were analyzed. The experimental results show that when the laser power is 235.2 w and the mixing ratio of magnesium and cobalt is 1∶300, the cladding effect is the best. The experimental samples under these conditions were characterized by scanning electron microscopy and eds elemental spectrum analysis. the results showed that ti elements in the matrix and co and mg elements in the cladding layer infiltrated each other after laser cladding, and the elements were evenly distributed in the matrix and cladding layer. The further test results show that the co and mg concentrations in the cladding layer have been increased to a certain extent by completely cladding the cladding material onto the surface of the substrate.