| 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.DOI:10.11951/j.issn.1005-0299.20180045. |
| LIU Xin,LI Zhimei,PEI Feng,TIAN Xu,JIA Lulu,CUI Sumei,MAO Rongjun,WAN Junbiao,LI Caifang,MENG Qiangguo,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.DOI:10.11951/j.issn.1005-0299.20180045. |
|
| |
|
|
| 本文已被：浏览 1015次 下载 714次 |
码上扫一扫！ |
|
|
| 红壤土浸出液中SO42-对铜包钢耐蚀性能的影响研究 |
|
刘欣1,李志美2,裴锋1,田旭1,贾蕗路1,崔素梅3,毛荣军1,万军彪1,李财芳1,孟墙国2,朱嘉伟2
|
|
(1.国网江西省电力有限公司电力科学研究院,南昌 330096;2.南昌大学 化学学院,南昌 330031; 3.江西问天科技有限责任公司,南昌 330096)
|
|
| 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.
|
| 关键词: 铜包钢 红壤土浸出液 硫酸根离子 腐蚀 电化学技术 |
| DOI：10.11951/j.issn.1005-0299.20180045 |
| 分类号:TB324；TQ33 |
| 文献标识码:A |
| 基金项目:国家电网公司科技项目(52182017000Y). |
|
| Effects of SO42- on the corrosion behavior of copper-clad steel in the red soil solution |
|
LIU Xin1,LI Zhimei2,PEI Feng1,TIAN Xu1,JIA Lulu1,CUI Sumei3,MAO Rongjun1,WAN Junbiao1,LI Caifang1,MENG Qiangguo2,ZHU Jiawei2
|
|
(1.State Grid Jiangxi Electric Power Research Institute, Nanchang 330096, China; 2. Department of Chemistry, Nanchang University, Nanchang 330031, China; 3.Jiangxi ASKY Technology Co. Ltd., Nanchang 330096, China)
|
| 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.
|
| Key words: copper-clad steel red soil solution SO42- corrosion electrochemical technique |
|
|
|
|
