| 红壤土浸出液中SO42-对铜包钢耐蚀性能的影响研究 |
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| 引用本文： | 刘欣,李志美,裴锋,田旭,贾蕗路,崔素梅,毛荣军,万军彪,李财芳,孟墙国,朱嘉伟. 红壤土浸出液中SO42-对铜包钢耐蚀性能的影响研究[J]. 材料科学与工艺, 2018, 26(6): 75-81 |
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| 作者姓名： | 刘欣 李志美 裴锋 田旭 贾蕗路 崔素梅 毛荣军 万军彪 李财芳 孟墙国 朱嘉伟 |
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| 作者单位： | 国网江西省电力有限公司电力科学研究院,南昌 330096,南昌大学 化学学院,南昌 330031,国网江西省电力有限公司电力科学研究院,南昌 330096,国网江西省电力有限公司电力科学研究院,南昌 330096,国网江西省电力有限公司电力科学研究院,南昌 330096,江西问天科技有限责任公司,南昌 330096,国网江西省电力有限公司电力科学研究院,南昌 330096,国网江西省电力有限公司电力科学研究院,南昌 330096,国网江西省电力有限公司电力科学研究院,南昌 330096,南昌大学 化学学院,南昌 330031,南昌大学 化学学院,南昌 330031 |
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| 基金项目： | 国家电网公司科技项目(52182017000Y). |
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| 摘 要： | 本文采用扫描电镜/能谱分析(SEM-EDS)、动电位极化、电化学阻抗谱技术研究了铜包钢接地材料受SO42-浓度影响的腐蚀行为.研究结果表明在含有不同浓度的SO42-的红壤土浸出液浸泡20 d，铜包钢都已出现点蚀现象.随着SO42-浓度从0.05~0.2 mol/L逐渐增加，铜包钢腐蚀程度呈现先增后减弱的趋势，在0.05 mol/L的SO42-浸出液中浸泡20天腐蚀最为严重，已腐蚀至内层钢.由于0.05 mol/L的SO42-浸出液中腐蚀后的铜包钢表面已被较多的不导电的腐蚀产物覆盖，因此实验结果显示其阻抗值最大和腐蚀速率最慢.
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| 关 键 词： | 铜包钢 红壤土浸出液 硫酸根离子 腐蚀 电化学技术 |
| 收稿时间： | 2018-02-28 |
Effects of SO42- on the corrosion behavior of copper-clad steel in the red soil solution |
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| LIU Xin,LI Zhimei,PEI Feng,TIAN Xu,JIA Lulu,CUI Sumei,MAO Rongjun,WAN Junbiao,LI Caifang,MENG Qiangguo and ZHU Jiawei. Effects of SO42- on the corrosion behavior of copper-clad steel in the red soil solution[J]. Materials Science and Technology, 2018, 26(6): 75-81 |
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| Authors: | LIU Xin LI Zhimei PEI Feng TIAN Xu JIA Lulu CUI Sumei MAO Rongjun WAN Junbiao LI Caifang MENG Qiangguo ZHU Jiawei |
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| Affiliation: | State Grid Jiangxi Electric Power Research Institute, Nanchang 330096, China,Department of Chemistry, Nanchang University, Nanchang 330031, China,State Grid Jiangxi Electric Power Research Institute, Nanchang 330096, China,State Grid Jiangxi Electric Power Research Institute, Nanchang 330096, China,State Grid Jiangxi Electric Power Research Institute, Nanchang 330096, China,Jiangxi ASKY Technology Co.Ltd., Nanchang 330096, China,State Grid Jiangxi Electric Power Research Institute, Nanchang 330096, China,State Grid Jiangxi Electric Power Research Institute, Nanchang 330096, China,State Grid Jiangxi Electric Power Research Institute, Nanchang 330096, China,Department of Chemistry, Nanchang University, Nanchang 330031, China and Department of Chemistry, Nanchang University, Nanchang 330031, China |
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| Abstract: | The investigation is about the corrosion behavior of copper-clad steel suffered from different concentrations of SO42- using SEM-EDS, polarization curves, and electrochemical impedance spectroscopy technique. The results shows that the materials of copper-clad steel immersed in the red soil solutions containing different concentrations of SO42- in 20 days were destroyed from pitting corrosion. With the increase of SO42- concentration from 0.05 to 0.2 mol/L, the corrosion degree showeda tendency of increasing gradually at low concentration and decreasing at high concentration of SO42-. The copper-clad steel corrosion was the severest. When immersed in the red soil solution of with SO42- concentration of 0.05 mol/L for 20 days. The destruction was into inner steel. As the copper-clad steel immersed in the red soil solution of with SO42- concentration of 0.05 mol/L for 20 days was covered by more insulated corrosion products than others, its impedance of copper-clad steel was the most eminent, and its corrosion rate was also the lowest. |
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| Keywords: | copper-clad steel red soil solution SO42- corrosion electrochemical technique |
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