Preparation method of graphene reinforced aluminum matrix composite material

The invention belongs to the technical field of composite material preparation, and provides a preparation method of a graphene reinforced aluminum matrix composite material. The preparation method ofthe graphene reinforced aluminum matrix composite material comprises the following steps that (1) a reinforced phase and matrix powder are mixed to obtain a raw material mixture; the reinforced phaseis graphene or graphene oxide; and (2) the raw material mixture is arranged in an aluminum matrix cladding in a filling mode, and friction extrusion is carried out to obtain the graphene reinforced aluminum matrix composite material. According to the preparation method of the graphene reinforced aluminum matrix composite material, the reinforced phase and the matrix powder are mixed first, and the reinforced phase is macroscopically dispersed in the matrix powder; then the raw material mixture is arranged in the aluminum matrix cladding in a filling mode for friction extrusion; and in the friction extrusion process, t