▎ 摘　　要

NOVELTY - The method involves presetting a graphite powder layer on a surface of a metal substrate. The graphene film layer is irradiated by a nanosecond pulse laser to obtain a graphene film grown at one time. Carbon atoms rich in the remaining carbon atoms is dissolved to form solid solution with carbon. A laser primary growth of the graphene sheet is artificially damaged. The nanosecond pulse laser is utilized to damage the damaged zone to obtain a graphene layer grown on a metal surface. USE - Method for secondary growth of a graphene film on a metal surface by laser. ADVANTAGE - The method improves anti-friction wear performance of the metal material, prolongs service life of the metal material, reduces economic cost and provides theoretical basis and experience guidance for upgrading and improving the mechanical system component. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a graphene film.