▎ 摘　　要

NOVELTY - Preparing high-strength magnesium-based three-dimensional graphene composite material comprises performing chemical plating method and hydrothermal chemical reaction method to obtain copper-three-dimensional grapheme, taking magnesium-neodymium-gadolinium-zinc-zirchonium magnesium alloy as the matrix, melting copper-three-dimensional graphene to form the strengthening phase, enhancing the mechanical properties and corrosion resistance of the alloy, deforming prepared magnesium alloy material by hot extrusion to refine the grains. USE - The method is useful for preparing high-strength magnesium-based three-dimensional graphene composite material. ADVANTAGE - The method enhances mechanical properties and corrosion resistance of the material; and realizes the high strength and corrosion resistance of magnesium-neodymium-gadolinium-zinc-zirchonium magnesium alloy.