Co-Ni合金镀层组织结构及性能研究  

Study on structure and properties of electrodeposited Co-Ni alloy deposits

作　　者：侯峰岩[1] 路庆华[1] 谭兴海[2] 蒋丽敏[2] 黄丽[2] 黄东明[2] 毕刚[2] 

机构地区：[1]上海交通大学化学化工学院,上海200240 [2]宝钢设备检修有限公司宝钢机械厂,上海201900

出　　处：《材料热处理学报》2007年第1期123-126,共4页Transactions of Materials and Heat Treatment

摘　　要：采用金相显微镜和X射线衍射(XRD)分析测定了Co-Ni镀层和纯Ni镀层的微观形貌和晶体结构;研究了Co-Ni镀层和纯Ni镀层的力学性能、高温抗软化性能以及摩擦磨损性能。结果表明,Co-Ni镀层是具有六方密排结构(hcp)的,以Co为溶剂,Ni溶解在Co中的单相固溶体,而纯Ni镀层为单一的面心立方结构(fcc)。与纯Ni镀层相比,Co-Ni镀层具有优异的力学性能和良好的高温抗软化性能。Co-Ni镀层所具有的六方密排结构(hcp)的组织结构降低了它的摩擦系数,使得Co-Ni镀层具有良好的耐磨损性能。The morphology and structure of Co- Ni and Ni deposits were examined by optical microscope and XRD. The mechanical properties, high temperature anti-intenerate and wear properties of the coatings were analyzed. It is found that the structure of Co-Ni deposits which were single phase solid solution composed by solvent Co and solute Ni is hexagonal close packed （hcp）, while the structure of pure Ni deposits is face- centered cube （fcc）. Contrasted with Ni deposits, Co-Ni deposits exhibit excellent mechanical and high temperature anti-intenerate properties. The hcp structure of Co-Ni deposits reduces friction coefficient of deposits and improves their anti-wear property.

关 键 词：电沉积 Co-Ni合金 结构 磨损 

分 类 号：TG174.44[金属学及工艺—金属表面处理] TG113[金属学及工艺—金属学]