Abstract:Copper and copper alloys have remarkable advantages such as strong plasticity, good processing performance, and excellent electrical and thermal conductivity, which are widely used in defense technology, electrical engineering, construction and light industry. Surface coating is an important technology widely used for corrosion protection of copper and copper alloys. Common anti-corrosion coatings used on the surface of copper and copper alloys mainly include non-metallic coatings, metallic coatings, and graphene coatings. In particular, non-metallic coatings include polymer coatings, self-assembled monomolecular films, and sol-gel coatings. Metallic coatings are classified into conventional electroplating coatings, thermal spray coatings, laser cladding layers and so on. In the aspects of application situation, the main corrosion types and protection measurements of copper and copper alloys, this paper summarized research development of the anti-corrosion coatings for copper and copper alloys, and focused on the main components, preparation methods, performance characteristics, and application prospects of various coatings. Meanwhile, this paper illuminated corrosion protection mechanisms of various coatings on copper and copper alloys, pointed out the shortcomings of various coatings, and then provided an outlook for development trends of the anti-corrosion coatings for copper and copper alloys, including four key research directions.