▎ 摘　　要

NOVELTY - Preparing graphene reinforced nickel aluminum alloy substrate composite material comprises (i) firstly dissolving organic carbon source in the deionized water, then adding metal nickel powder, and heating and stirring until the water is completely evaporated, and then drying to obtain the carbon source coated nickel powder, (ii) uniformly mixing carbon source coated nickel powder and aluminum powder, and transferring into mold for cold press molding to obtain blank, and (iii) placing the blank in the vacuum sintering furnace, when the furnace pressure is less than 0.1 Pa, filling hydrogen and argon gas until the furnace pressure reaches 200-2000 Pa, heating vacuum sintering furnace to 950-1200 degrees C, maintaining the temperature for 30 minutes to 2 hours, and immediately transferring the sample to the low temperature area of the vacuum sintering furnace for quick cooling to obtain in-situ grown graphene-reinforced nickel-aluminum alloy substrate composite material. USE - The method is useful for preparing graphene reinforced nickel aluminum alloy substrate composite material. ADVANTAGE - The method: uses solid carbon source as graphene precursor to reduce dispersion difficulty of graphene; controls the graphene growth by adjusting the carbon atoms in the nickel substrate; prepares composite material having graphene with controllable number of layers, and nickel aluminum alloy substrate with good interface bonding, and reinforcing and toughening effect; is simple; has good controllability; and is suitable for large-scale production. DETAILED DESCRIPTION - Preparing graphene reinforced nickel aluminum alloy substrate composite material comprises (i) firstly dissolving organic carbon source in the deionized water, then adding metal nickel powder, and heating and stirring until the water is completely evaporated, and then drying to obtain the carbon source coated nickel powder, (ii) uniformly mixing carbon source coated nickel powder and aluminum powder, and transferring into mold for cold press molding to obtain blank, and (iii) placing the blank in the vacuum sintering furnace, when the furnace pressure is less than 0.1 Pa, filling hydrogen and argon gas until the furnace pressure reaches 200-2000 Pa, heating vacuum sintering furnace to 950-1200 degrees C, maintaining the temperature for 30 minutes to 2 hours, and immediately transferring the sample to the low temperature area of the vacuum sintering furnace for quick cooling to obtain in-situ grown graphene-reinforced nickel-aluminum alloy substrate composite material, where the mass ratio of the organic carbon source and metal nickel powder is (1-4):100; in the metal nickel powder and the aluminum powder, the atomic percentage of aluminum powder is 1-18 at.%.