Research Progress of Laser Cladding Coatings on Copper Alloys

In view of the wide inclusiveness of laser cladding technology for coating material selection, combined with its high efficiency and metallurgical combination between coating and substrate, the surface coating reinforcement technology is expected to become an ideal means of surface reinforcement of key copper alloy components in extreme environments. Based on the characteristics of high reflectivity, high thermal conductivity and easy oxidation of copper alloy, starting from the regulation of laser cladding process parameters and coating type selection, the latest research results of laser cladding coating prepared oncopper alloy surface were reviewed. The internal relationship between coating composition and corrosion resistance was explained, and the problems in laser cladding on surface of copper alloy and the future development trend were discussed.