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利用铜基熔体的液相分离作用 ,采用激光熔覆工艺 ,在 ZL10 4合金表面成功获得了球形颗粒体增强的过饱和(Cu,Ni)固溶体基复合材料涂层。 (Cu,Ni)固溶体的组织形态为胞状和树枝状 ,球形增强体内亚组织形态为颗粒状、穗状或树叶状。干滑动摩擦磨损试验表明复合材料熔覆层对 ZL 10 4合金表面耐磨性的提高作用很大。磨损过程中 ,ZL10 4合金主要发生了粘附磨损 ,出现了脱层现象 ;熔覆层材料发生了粘附磨损和磨粒磨损
By using the liquid phase separation of copper-based melt, a spherical particle-reinforced supersaturated (Cu, Ni) solid solution-based composite coating was successfully obtained on the surface of ZL10 4 alloy by laser cladding. (Cu, Ni) solid solution of the cell morphology and dendritic shape, spherical shape of the sub-organization to enhance the form of granular, spike or leaf-like. Dry sliding friction and wear tests show that the composite coating on the ZL104 alloy surface wear resistance plays a significant role. In the process of wear, the wear of ZL10 4 alloy occurred mainly and the phenomenon of delamination appeared. The adhesion and wear of cladding material