电刷镀Ni-石墨烯复合镀层的组织结构及性能  

Microstructure and Properties of Electro-brush Plating Ni-graphene Composite Coating

作　　者：丁小龙 胡振峰[2] 金国[1] 吕镖[2] 汪笑鹤[3] DING Xiao-long1,2, HU Zhen-feng2 ,JIN Guo1, LYU Biao2,WANG Xiao he3(1 School of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China ; 2 National Engineering Research Center for Mechanical Product Remanufacturing,Academy of Armored Army Force,Beijing 100072,China;3 Hua Yin Weapon Test Centre in China, Huayin 714200, Shaanxi, China)

机构地区：[1]哈尔滨工程大学材料科学与化学工程学院,哈尔滨150001 [2]陆军装甲兵学院机械产品再制造国家工程研究中心,北京100072 [3]中国华阴兵器试验中心,陕西华阴714200

出　　处：《材料工程》2018年第11期110-117,共8页Journal of Materials Engineering

基　　金：国家自然科学基金资助项目(51605491;51005244)

摘　　要：利用电刷镀技术在45钢表面制备出Ni-石墨烯(Ni-GE)复合镀层。采用透射电镜(TEM)、原子力显微镜(AFM)、扫描电镜(SEM)、能谱仪(EDS)、Raman光谱仪、X射线衍射仪(XRD)对GE片层、复合镀层内部的GE、镀层的晶粒大小以及微观形貌进行表征,采用显微硬度计对镀层的硬度进行研究。结果表明:Ni-GE复合镀层中的石墨烯以3种形式(Ⅰ型、Ⅱ型、Ⅲ型)存在;相比于纯Ni镀层,Ni-GE复合镀层的晶粒尺寸均减小;当GE的添加量为0.5g/L时,Ni-GE复合镀层的质量最优;由于GE自身的高硬度及其细晶强化作用,Ni-石墨烯复合镀层的硬度相对于纯Ni镀层提高了15.2%。Ni-graphene composite coating was prepared on 45 steel substrates by electro-brush plating.The graphene layers,graphene in the composite coatings,the grain size and morphology of the coatings were characterized by transmission electron microscope（TEM）,atomic force microscope（AFM）,scanning electron microscope（SEM）,energy dispersive spectrometer（EDS）,Raman spectrometer,X-ray diffraction（XRD）.The hardness of coatings was investigated by microhardness tester.The results show that graphene in Ni-graphene composite coating exists in the form of three（type Ⅰ,type Ⅱ,typeⅢ）,compared with the pure Ni coating,the grain size of Ni-graphene composite coatings reduces;when the content of graphene is 0.5 g/L,the quality of Ni-graphene composite coating is best;because of the high hardness of graphene and its fine-grain strengthening effect,the hardness of Ni-graphene composite coating is 15.2% higher than that of pure Ni coating.

关 键 词：电刷镀 石墨烯 Ni-GE复合镀层 硬度 

分 类 号：TQ153[化学工程—电化学工业]