▎ 摘　　要

NOVELTY - Method for preparing graphene-high-entropy alloy composite material by selective laser melting involves (a) weighing aluminum, cobalt, chromium, iron, nickel and boron powders and performing ball milling to mechanically alloy the metal powders to obtain high-entropy alloys, where the ball mill uses high-purity argon as the protective gas and zirconia balls as the ball milling medium, (b) adding graphene absolute ethanol solution to the high-entropy alloy, continuously ball milling, and drying after ball milling to obtain composite material powder, where the graphene added in every 100 g high-entropy alloy is less than or equal to 2 g, (c) using Majics software to carry out 3D modeling and slice processing to convert the sliced file into a slc two-dimensional slice file format, importing the model slices into the rapid prototyping machine, and using RP Build software to control the SLM molding process at a laser power 200-350 W, scanning speed at 400-2000 mm/second, scanning distance of 50-100 mu m. USE - Method used for preparing graphene-high-entropy alloy composite material by selective laser melting (claimed). ADVANTAGE - The method guarantees a suitable energy density value by adjusting the process parameters, produces molded portion high in density, has excellent quality and excellent in performance, has fine grains, enhances the hardness of high-entropy alloy materials, reduces the friction coefficient, improves wear resistance of composite materials, and prepares a dense anti-wear material.