本文已被：浏览 962次 下载 413次
投稿时间：2009-06-18
投稿时间：2009-06-18
中文摘要: 采用失重法、电化学极化曲线和电化学阻抗谱考察了pH=2的HCl溶液中三乙烯四胺基双二硫代甲酸钠(DTC-TETA)对黄铜的缓蚀作用.挂片实验表明,20 mg/L的DTC-TETA对黄铜的缓蚀效率可达88.2%.电化学测量表明,DTC-TETA使黄铜的自腐蚀电位负移至-115.2 mV,抑制了黄铜电极的阴极还原过程,提高了黄铜电极表面的电荷转移电阻,具有较好的缓蚀效果.
Abstract:The corrosion inhibition action of Sodion Triethylenetetramine-bisDithiocarbamate (DTC-TETA) for brass in pH=2 HC1 solution is investigated by potentiodynamic polarization and electrochemical impedance spectroscopy.Coupon tests show that the best inhibition efficiency is 88.2% by using DTC-TETA at a concentration of 20 mg/L.Electrochemical tests show that DTC-TETA makes the corrosion potential shift negative to-115.2 mV and restrains process of cathodic reduction and increases greatly the charge transfer resistance of brass electrode.It has good corrosion inhibitive effect on brass in HCl solution.
文章编号：20090513 中图分类号： 文献标志码：
基金项目:上海市重点学科建设项目(P1304)
引用文本：
岳忠文,廖强强,陈亚琼.盐酸溶液中三乙烯四胺基双二硫代甲酸钠对黄铜的缓蚀作用[J].上海电力大学学报,2009,25(5):465-468.
YUE Zhong-wen,LIAO Qiang-qiang,CHEN Ya-qiong.Inhibitive Effect of a Sodion Triethylenetetramine-bisDithiocarbamate on Brass in HCl Solution[J].Journal of Shanghai University of Electric Power,2009,25(5):465-468.
岳忠文,廖强强,陈亚琼.盐酸溶液中三乙烯四胺基双二硫代甲酸钠对黄铜的缓蚀作用[J].上海电力大学学报,2009,25(5):465-468.
YUE Zhong-wen,LIAO Qiang-qiang,CHEN Ya-qiong.Inhibitive Effect of a Sodion Triethylenetetramine-bisDithiocarbamate on Brass in HCl Solution[J].Journal of Shanghai University of Electric Power,2009,25(5):465-468.