输电线路金具表面电沉积锌-镍-金刚石复合镀层的性能  

Properties of Zn-Ni-diamond composite coating electrodeposited on metal fittings for transmission line

作　　者：赵军愉 徐松晓 柴小亮 王胜楠 谢思哲 ZHAO Junyu;XU Songxiao;CHAI Xiaoliang;WANG Shengnan;XIE Sizhe(Power Supply Branch,State Grid Hebei Electric Power Co.,Ltd.,Baoding 071000,China)

机构地区：[1]国网河北省电力有限公司保定供电分公司,河北保定071000

出　　处：《电镀与涂饰》2024年第7期9-15,共7页Electroplating & Finishing

基　　金：国网河北省电力有限公司科技项目(kj2023-060)。

摘　　要：[目的]对输电线路金具进行适当的表面处理有利于延长其使用寿命,为电力系统的安全运行提供保障。[方法]采用扫描电子显微镜(SEM)、能谱仪(EDS)、X射线衍射仪(XRD)、电化学分析和摩擦磨损试验,对比了纯Zn、Zn-Ni合金和Zn-Ni-金刚石复合镀层的微观形貌、元素成分、相结构、耐蚀性和耐磨性。[结果]在研究的3种镀层中,Zn-Ni-金刚石复合镀层表面最平整致密,主要由γ-Ni_(5)Zn_(21)相和δ-Ni_(3)Zn_(22)相组成,耐蚀性和耐磨性最佳。[结论]Zn-Ni-金刚石复合电沉积在金具表面防护方面具有良好的应用前景。[Introduction]Appropriate surface treatment of metal fittings used on transmission line is beneficial for extending their service lives and ensuring the safe operation of power system.[Method]The micromorphology,elemental composition,phase structure,corrosion resistance,and wear resistance of pure Zn,Zn-Ni alloy,and Zn-Ni-diamond composite coatings were compared by scanning electron microscopy(SEM),energy-dispersive spectroscopy(EDS),X-ray diffraction(XRD),electrochemical analysis,and friction and wear testing.[Result]Among the three kinds of coatings,Zn-Ni-diamond composite coating,which was mainly composed of γ-Ni_(5)Zn_(21) phase and δ-Ni_(3)Zn_(22) phase,was the smoothest and the most compact,and had the best corrosion and wear resistance.[Conclusion]Zn-Ni-diamond composite electrodeposition has a promising application prospect in the surface protection of metal fittings.

关 键 词：输电线路 金具 复合电沉积 锌 镍 金刚石 耐蚀性 耐磨性 

分 类 号：TQ153.2[化学工程—电化学工业]