▎ 摘　　要

NOVELTY - Preparation of ceramic and graphene oxide composite film layer on surface of aluminum alloy involves placing pre-treated aluminum alloy in an alkaline electrolyte, performing micro-arc oxidation treatment to form uniform ceramic layer, immersing the aluminum alloy with the ceramic layer in graphene oxide sol for drawing and drying. USE - Preparation of ceramic and graphene oxide composite film layer on surface of aluminum alloy. ADVANTAGE - The preparation process produces aluminum alloy with improved corrosion resistance and reduced effect of discharge channels and microcracks formed by micro-arc oxidation.