镍-石墨烯复合镀层对7075铝合金性能优化研究  

Study on Optimization of Nickel-Graphene Composite Coating Properties of 7075 Aluminum Alloy

作　　者：张兰[1] 杨怡 马会中[1] 张雪芳[1] ZHANG Lan;YANG Yi;MA Huizhong;ZHANG Xuefang(School of Mechanics and Safety Engineering,Zhengzhou University,Zhengzhou 450000,China)

机构地区：[1]郑州大学力学与安全工程学院,河南郑州450000

出　　处：《热加工工艺》2025年第2期35-38,共4页Hot Working Technology

基　　金：中原院士基金项目(20191201)。

摘　　要：为探究镍-石墨烯复合镀层对7075铝合金性能的影响,利用单因素试验在无机溶剂体系下通过电沉积的方式制备出不同石墨烯添加量的镍-石墨烯复合镀层,并测试分析其耐磨性与耐腐蚀性。并利用扫描电子显微镜、X射线衍射物相分析、拉曼光谱对镍-石墨烯复合镀层的微观结构和组成成分进行了表征分析。结果表明:镍-石墨烯复合镀层能有效提高7075铝合金的耐磨性与耐腐蚀性,且当添加3 g/L石墨烯的复合镀层性能最佳,此时复合镀层耐磨系数为0.29,腐蚀电流密度为1.15×10^(-4)A/cm^(2)。In order to explore the influence of nickel-graphene composite coating on the properties of 7075 aluminum alloy,single factor test was used to prepare nickel-graphene composite coatings with different graphene additions by electrodeposition in an inorganic solvent system,and its wear resistance and corrosion resistance were tested and analyzed.The microstructure and composition of the nickel-graphene composite coating were characterized and analyzed by scanning electron microscope,X-ray diffraction phase analysis,and Raman spectroscopy.The results show that the nickel-graphene composite coating can effectively improve the wear resistance and corrosion resistance of 7075 aluminum alloy,and the performance of the composite coating is best when 3 g/L graphene is added.At this time,the composite coating has a wear resistance coefficient of 0.29 and the corrosion current density is 1.15×10^(-4)A/cm^(2).

关 键 词：镍-石墨烯镀层 7075铝合金 耐磨性 耐腐蚀性 

分 类 号：TG174.44[金属学及工艺—金属表面处理] TG146.21[金属学及工艺—金属学]