▎ 摘　　要

NOVELTY - Preparing high-entropy alloy nano composite material comprises mixing graphene, metal salt precursor, grinding ball and reacting, preparing grinding ball with graphene and nano-metal particles attached on the surface, mechanical ball milling grinding ball attached with graphene and nano metal particles on the surface with the high entropy alloy, preparing composite powder containing graphene, nano metal particles and high entropy alloy, using laser to heating and melting composite powder, depositing and solidifying to obtain high-entropy alloy nano composite material. USE - The method is useful for preparing high-entropy alloy nano composite material. ADVANTAGE - The method: solves agglomeration problem of graphene and nano-metal particles, refines grain, and improves grain boundary tissue and mechanical property of high-entropy alloy. The material: has large size, complex structure and uniform components. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for high-entropy alloy nano composite material. DESCRIPTION OF DRAWING(S) - The drawing shows flow chart illustrating the method for preparing high-entropy alloy nano composite material (Drawing includes non-English language text).