▎ 摘　　要

NOVELTY - Method for preparing a graphene modified magnesium alloy hub involves (a) preparing graphene-modified magnesium alloy melt, (b) performing low-pressure casting to produce magnesium alloy wheel blanks, (c) carrying out aging treatment on the magnesium alloy wheel blank at 170-180°C for 16-20 hours, and cooling to room temperature, (d) machining, polishing, and grinding to obtain magnesium alloy wheels, and (e) coating to obtain the finished product. USE - Preparation method of graphene modified magnesium alloy hub used in automobile. Can also be used in preparing graphene-based composite material for anti-high temperature hub and automobile wheel, in the magnesium alloy substrate, adding Re reinforced matrix, cladding layer is laser cladding on the surface of magnesium alloy, and coating to obtain finished product. ADVANTAGE - The preparation method of graphene modified magnesium alloy hub is simple in technique, low in cost, satisfies light weight and environment-friendly requirement, and has high yield strength, good extending rate, meets the requirement of automobile light weight, and environment protection. The graphene is uniformly distributed in the magnesium alloy, with excellent combination of the magnesium graphene interface, the mechanical property satisfy the automobile hub using requirement.