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应用高功率CO_2激光,对火焰喷涂的Co基合金涂层进行重熔处理,获得了成分、显微结构均匀的微细枝晶组织,减少了气孔,消除了大块碳化物偏析,实现了涂层与基体的冶金结合,提高了涂层耐磨和耐腐蚀能力。
The high-power CO 2 laser was used to remelt the flame-sprayed Co-based alloy coating to obtain a fine dendritic structure with uniform composition and microstructure, reducing the porosity and eliminating segregation of large carbides, thus realizing the coating The metallurgical combination with the matrix improves the abrasion and corrosion resistance of the coating.