铜在电网接地工况下的腐蚀行为研究  

Corrosion Behavior of Copper in a Simulated Grounding Condition in Electric Power Grid

作　　者：高义斌 杜晓刚 王启伟 钟黎明 付文华 张邯平 张甍 姜春海 GAO Yibin;DU Xiaogang;WANG Qiwei;ZHONG Liming;FU Wenhua;ZHANG Hanping;ZHANG Meng;JIANG Chunhai(State Grid Shanxi Electric Power Research Institute,Taiyuan 030001,China;School of Materials Science and Engineering,Xiamen University of Technology,Xiamen 361024,China)

机构地区：[1]国网山西省电力公司电力科学研究院,太原030001 [2]厦门理工学院材料科学与工程学院,厦门361024

出　　处：《中国腐蚀与防护学报》2023年第2期435-440,共6页Journal of Chinese Society For Corrosion and Protection

摘　　要：通过室内模拟加速实验、电化学测试以及X射线衍射(XRD)、扫描电子显微镜(SEM)等手段对通电工况下铜接地网材料在酸性土壤环境中的腐蚀特征进行了研究。结果表明,通电条件对Cu的腐蚀行为有较大影响,Cu的腐蚀速率随外加电流密度的增大而逐渐增大;腐蚀产物以CuO和Cu_(2)O为主,Cu_(2)O的占比随外加电流密度的增大而减小。The corrosion behavior of copper was studied by means of an indoor simulation accelerated test method, aiming to simulate the situation that copper earthed in acidic soil in power grid with alternating current(AC) interference, as well as electrochemical measurement, X-ray diffractometer(XRD)and scanning electron microscope(SEM). The results demonstrate that the interference current AC has a great influence on the corrosion of copper. The corrosion rate of copper is positively related to AC density.The main corrosion products are CuO and Cu_(2)O, while the proportion of Cu_(2)O was declined with the increasing AC density.

关 键 词：接地工况 纯铜 土壤腐蚀 交流电 电网 

分 类 号：TG172[金属学及工艺—金属表面处理]