Graphene Reinforced Copper Matrix Composites

Copper and copper alloys have excellent conductivity,thermal conductivity and good plasticity and are widely used.However,due to the relatively low surface hardness and anti-friction wear resistance,the service time in the harsh operating conditions is greatly reduced.Graphene has excellent physical properties,high strength,high thermal conductivity and high conductivity.Therefore,graphene is used in metal matrix composites,and the advantage of graphene is used to strengthen the surface of copper alloy.Friction stir processing with friction stir welding technology derived material surface processing technology,using a certain thickness on the surface of a metal friction stir processing on the surface of the friction stir,stir the dramatic of three-dimensional metal plastic flow,realize fully mixing under solid state.This article USES the friction stir processing technology of the preparation of graphene,Al₂O₃,and SiC powder reinforced copper composite material,by means of metallographic microscope,scanning electron microscope,microhardness and tensile experiments,friction and wear experiment and testing means,analysis of the composite material microstructure changes in different areas of the friction stir zone,mixing the metal plastic flow rule,polymer powder of partial phenomenon and the morphology of tensile fracture,friction and wear resistance and electric conductivity.This article USES the friction stir processing technology of the preparation of graphene,Al₂O₃,and SiC powder reinforced copper composite material,by means of metallographic microscope,scanning electron microscope,microhardness and tensile experiments,friction and wear experiment and testing means,analysis of the composite material microstructure changes in different areas of the friction stir zone,mixing the metal plastic flow rule,polymer powder of partial phenomenon and the morphology of tensile fracture,friction and wear resistance and electric conductivity.The research work on the preparation of the composite material by stirring friction is of theoretical value for the in-depth understanding of the scientific problems in the metal matrix.