【摘要】 为了得到性能优异的复合镀层,在镀液中添加不同粒径的石墨烯,采用复合电沉积技术,制备了Ni-Co-石墨烯复合镀层。表征了镀层的表面形貌、相结构、显微硬度、耐磨性和耐蚀性能,并同Ni-Co合金对比。结果显示,石墨烯很好地嵌入到了镀层中,而且石墨烯的存在并没有改变镀层基质的晶体结构;添加石墨烯提高了复合镀层的显微硬度（HV）,最高可达8050 MPa;降低了复合镀层的摩擦系数,在一定程度上减少了粘着磨损的面积;复合镀层的自腐蚀电流密度为1.0905×10^-5 A/cm²,低于Ni-Co合金镀层的自腐蚀电流密度1.8298×10^-5 A/cm²。石墨烯的添加提高了复合镀层的硬度,耐磨性和耐蚀性。更多还原

【Abstract】 In order to obtain a composite coating with excellent performance,Ni-Co-graphene composite coating was prepared by adding graphene with different particle sizes to the plating solution and using composite electrodeposition technology.The surface morphology,phase structure,microhardness,wear resistance and corrosion resistance of the coating were characterized and compared with the Ni-Co alloy.The results show that graphene is well embedded in the coating,and the presence of graphene does not change the crystal structure of the substrate.The addition of graphene increases the microhardness（HV） of the composite coating up to 8050 MPa.The friction coefficient of composite coating is reduced,and the area of adhesive wear is reduced to some extent.The self-corrosion current density of composite coating is 1.0905×10^-5 A/cm²,which is lower than that of Ni-Co alloy coating 1.8298×10^-5 A/cm².The addition of graphene improves the hardness,wear resistance and corrosion resistance of composite coatings.更多还原