▎ 摘　　要

NOVELTY - The nanoreinforcement modified nickel alloy powder comprises 10-25 wt.% of ceramic powder, 5-15 wt.% of graphene powder and balance of nickel alloy powder. The nickel alloy powder comprises 2.5-5 wt.% of carbon, 4-10 wt.% of tungsten, 6-15 wt.% of chromium, 3-5 wt.% of titanium, 1.5-5 wt.% of rhenium, 2-2.5 wt.% of molybdenum, 3-5 wt.% of tin, 1-2.5 wt.% of niobium, 0.5-2 wt.% of iron, 5-10 wt.% of copper and balance of nickel. The ceramic powder is silicon carbide, tungsten carbide, alumina, yttria or titanium diboride. USE - The nanoreinforcement modified nickel alloy powder is useful in the preparation of a nickel alloy material by three-dimensional printing, which is a selective laser melting technique, an electron beam melting technique or a coaxial powder-feeding laser forming technique (claimed). The nickel alloy material is useful for manufacturing important parts of turbine discs, gas turbines and aerospace engines. ADVANTAGE - The performance of the nickel alloy powder is enhanced by adjusting the content percentage of alloy elements. The internal microcracks can be effectively eliminated, and the compactness and the structure form of a formed piece are improved. The ceramic powder and graphene powder in the prepared nano reinforcement modified nickel alloy powder are uniformly distributed. The nano reinforcement modified nickel alloy powder can enhance the mechanical property and high temperature resistance of the formed nickel alloy material by combining the 3D printing technology. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of nanoreinforcement modified nickel alloy powder.