Cu-50Co合金在HCl溶液中的腐蚀电化学性能研究  

Study on Corrosion Electrochemical Properties of Cu-50Co Alloy in HCl Solution

作　　者：刘嘉欣 周子力 曹中秋 LIU Jia-xin;ZHOU Zi-li;CAO Zhong-qiu(College of Chemistry and Chemical Engineering,Shenyang Normal University,Liaoning Shenyang 110034,China)

机构地区：[1]沈阳师范大学化学化工学院

出　　处：《辽宁化工》2019年第10期960-962,共3页Liaoning Chemical Industry

基　　金：辽宁省重点研发计划项目（项目号2018304025）

摘　　要：采用液相还原法制备两种不同粒径大小的Cu-Co合金粉末,采用真空热压技术制备合金块体,借助电化学手段,通过测量E-t曲线、动电位极化曲线以及交流阻抗谱研究在0.5mol/LHCl溶液中两种粒径大小合金的腐蚀性能。研究结果表明:纳米晶Cu-50Co合金与常规尺寸Cu-50Co合金相比,腐蚀电流密度较小、电荷传递电阻较大、具有较好的耐蚀性能。Two kinds of Cu-50 Co alloy powders with different particle sizes were prepared by liquid phase reduction method, and the corresponding bulk alloys were prepared in vacuum by hot pressing technique. The corrosion properties of two Cu-50 Co alloys with different particle sizes in 0.5 mol/L HCl solution were studied by measuring E-t curve, potentiodynamic polarization curve and electrochemical impedance spectroscopy. The results showed that, compared with the corresponding coarse grained Cu-50 Co alloy, the nanocrystalline Cu-50 Co alloy had lower corrosion current density, higher charge transfer resistance, and better corrosion resistance.

关 键 词：Cu-50Co合金 液相还原法 电化学测试 

分 类 号：TG172[金属学及工艺—金属表面处理]