▎ 摘　　要

NOVELTY - The utility model claims a graphene-Zr-MOF- polydimethylsiloxane magnesium alloy surface anti-corrosion composite coating structure, comprising a magnesium alloy substrate, a wear-resistant corrosion resistant layer set on the bottom surface of the magnesium alloy substrate, a graphene-Zr MOF-polydimethylsiloxane composite coating set on the top surface of the magnesium alloy substrate. The utility model changes the organic coating adopted by the metal coating layer and adopts graphene-Zr-MOF- polydimethylsiloxane composite coating, which has better corrosion resistance and mechanical stability, the coating structure can prevent the diffusion of the corrosion medium, so as to improve the corrosion resistance, The surface of the magnesium alloy is reduced by two orders of magnitude from the corrosion current density.