▎ 摘　　要

NOVELTY - Preparing graphene reinforced aluminum matrix composite material involves obtaining raw materials by drying graphene, aluminum powder and aluminum blocks in a drying box, and removing moisture. The surface of the graphene is chemically plated with aluminum by using chemical plating method to obtain aluminum-plated graphene powder. The aluminum block is melt into aluminum liquid in a crucible furnace, and inert gas is introduced for protection. The forming device is heated to a temperature lower than the melting point of aluminum, and aluminum liquid obtained is poured into a mold of a forming device to form an aluminum liquid solidified layer, then a layer of aluminum-plated graphene powder obtained is layed. USE - Method for preparing graphene reinforced aluminum matrix composite material used in field of rapid development of power and aerospace. ADVANTAGE - The method provides graphene-reinforced aluminum-based composite material with high conductive performance. It effectively overcomes the problem of bad wettability of graphene and aluminium-based material. The graphene is uniformly dispersed in the material, under the premise of keeping high conductivity of the aluminum substrate, effectively improving the strength of the material. DETAILED DESCRIPTION - Preparing graphene reinforced aluminum matrix composite material involves obtaining raw materials by drying graphene, aluminum powder and aluminum blocks in a drying box, and removing moisture. The surface of the graphene is chemically plated with aluminum by using chemical plating method to obtain aluminum-plated graphene powder. The aluminum block is melted into aluminum liquid in a crucible furnace, and inert gas is introduced for protection. The forming device is heated to a temperature lower than the melting point of aluminum, and aluminum liquid obtained is poured into a mold of a forming device to form an aluminum liquid solidified layer, then a layer of aluminum-plated graphene powder obtained is layed. The aluminum liquid is poured to form an aluminum liquid solidified layer, a layer of aluminum-plated graphene powder obtained is layed, and repeating the operation for multiple times until the forming mold is filled, and forming a sandwich structure consisting of the aluminum liquid solidified layer and the aluminum-plated graphene powder layer, where the last layer is the aluminum solution solidified layer. The sandwich structure obtained is extruded into a cuboid test block by using a press. The obtained cuboid test block is heated to 500-600degrees Celsius in a heating furnace, and heat is preserved for a certain time to perform forging treatment, and after cooling to room temperature, longitudinal cold deformation is carried out on the forged cuboid test block. The deformed cuboid test block is annealed under the protection of inert gas to obtain graphene reinforced aluminum matrix composite material.