采用激光熔覆技术基于压片预置式法在高温合金基体上制备NiCoCrAlY熔覆涂层，分析讨论粉末压片冷等静压处理对其熔覆涂层结合界面的影响。研究表明，粉末压片冷等静压处理后熔覆试样的宏观形貌更加完整连续，同时能够改善熔覆涂层与基体结合界面间的裂纹现象。对其机理进一步分析可知：冷等静压处理后的粉末压片的厚度变薄，致密度增加，熔覆所需要的激光比能增加，从而提高了熔覆层结合界面的质量。

Based on the method of squashing presetting on the high temperature alloy to prepare NiCoCrAlY coating by laser cladding, the influence of squashing treated by cold isostatic pressing on the bonding interface is discussed. The research shows that macroscopic morphology of layers with pretreatment is complete and continuous and the phenomena of cracks in the coating interface are eliminated or reduced. With further study of mechanism, it is found that the thickness of the squashing decreased while the density and laser specific energy required for laser cladding increase, which are beneficial to the quality of interfacial morphologies of laser cladding.