▎ 摘　　要

NOVELTY - Preparing metal-copper-graphene layered composite material comprises (i) taking pieces of magnesium sheets, pre-cutting the round hole at the distance of 3 mm from the length and width on the diagonal of the magnesium sheet, polishing, cleaning surface, and putting into clean alcohol, (ii) placing the pre-treated magnesium sheet under the action of external electric field, performing electrophoresis deposition graphene, depositing, obtaining graphene plating layer, dispersing copper powder, coating copper powder and graphene and copper powder on the surface of magnesium sheet of the plating layer; (iii) drying magnesium sheets after drying, aligning the small round hole on magnesium sheet is aligned with the round nail for riveting, where one sheet is overlapped to obtain the interlayer; (iv) accumulating and hot rolling aluminum alloy sheath at 360 -410degrees Celsius, pass rolling for 5-10 minutes; and (v) annealing the plate at 360-410degrees Celsius for 5-15 minutes to obtain plate. USE - Preparation method of metal magnesium-copper-graphene layered composite material. ADVANTAGE - The method has simple preparation technique, low cost, short production period, and can be used for industrial production. The method uses copper powder as the intermediate material of the magnesium matrix as graphene, to relieve the problem of poor bonding strength of graphene and copper interface. The graphene layer between adjacent two magnesium layers thin the crystal grain near the graphene layer in a certain degree, forming fine grain reinforcing, the strength is improved, so the layered bionic magnesium-based composite material prepared by the method has high strength and plasticity. The layered structure has a large amount of interface, blocking the further movement of the dislocation, but also can improve the strength of the material, when the stress in the single structure layer is rapidly increased, stress can be transmitted to the adjacent structure layer through the interface.