通过研究不同参数下高熵合金熔覆层的显微组织、相的组成，并将晶界与树枝晶元素原子量进行对比分析，揭示工艺参数对激光熔覆制备高熵合金的影响。结果表明：在激光功率一定的条件下，AlCoCrCuFeNi高熵合金相结构随着扫描速度的增加逐渐由bcc相变为bcc相+fcc相；对比熔铸法，激光熔覆铝合金制备多了1个以Al元素为主的fcc固溶体相。高熵合金主要由底部的树枝晶向顶部的等轴晶发展。通过EDS分析发现，熔覆过程中Al元素偏析严重，Cu元素在晶界处有少量偏析，且扫描速度对合金质量影响明显。

By studying the microstructure, phase composition, and atomic weight of grain boundaries and dendrite elements of the high-entropy alloy cladding layer under different parameters, the effects of process parameters on the preparation of high-entropy alloys by laser cladding were revealed. The results show that under the constant laser power, the phase structure of AlCoCrCuFeNi high-entropy alloy gradually changes from bcc phase to bcc phase +fcc phase with the increase of scanning speed. Compared with the melting and casting method, the laser cladding aluminum alloy has an additional fcc solid solution phase mainly composed of Al element. The high-entropy alloys mainly develop from dendrites at the bottom to equiaxed crystals at the top. Through EDS analysis, it is found that Al element segregates seriously, and Cu element has a small amount of segregation at the grain boundary. The scanning speed has a significant effect on the alloy quality.