▎ 摘　　要

NOVELTY - Surface strengthening of graphene oxide coating layer by laser impact comprises e.g. (i) mixing the graphene, graphene oxide or their mixture solution applied to the material substrate surface needs to be reinforced to form a coating layer; (ii) providing an aluminum foil on coating as an absorbent layer; (iii) setting optical glass or silica gel as restraint layer on absorbing layer, and (iv) using pulse laser coating impact by laser scanning, laser impact strengthening principle; and carrying out laser impact scanning absorption layer by pulse laser, and laser irradiated on absorbing layer. USE - The method is useful for surface strengthening of graphene oxide coating layer by laser impact (claimed). DETAILED DESCRIPTION - Surface strengthening of graphene oxide coating layer by laser impact comprises (i) mixing the graphene, graphene oxide or their mixture solution applied to the material substrate surface needs to be reinforced to form a coating layer; (ii) providing an aluminum foil on the coating as an absorbent layer; (iii) setting optical glass or silica gel as restraint layer on the absorbing layer, (iv) using pulse laser coating impact by laser scanning, laser impact strengthening principle: and carrying out laser impact scanning the absorption layer by pulse laser, laser irradiated on the absorbing layer through the restraint layer, absorption layer absorbs laser energy gasification to form a lot of high temperature high pressure plasma, plasma rapidly expands to form the shock wave of high intensity, impact wave acts on the coating part of coating by a shock wave into the material substrate surface, portion of coating and adhered to the base material surface for strengthening the material substrate surface, and (v) using the laser impact of the material after the matrix of natural cooling to room temperature, and then removing the remaining material on the matrix of the constraining layer and the absorption layer to obtain the surface reinforced material matrix.