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金属学报  2006, Vol. 42 Issue (5): 533-536     
  论文 本期目录 | 过刊浏览 |
脂肪酰胺类缓蚀剂对X65钢抗CO2腐蚀的机理研究
杜海燕;路民旭;吴荫顺;吴伟明
江西理工大学材料与化学工程学院
INHIBITION MECHANISM OF STEARAMIDE DERIVATIVE ON THE CORROSION OF CO2
DU Haiyan
江西理工大学
引用本文:

杜海燕; 路民旭; 吴荫顺; 吴伟明 . 脂肪酰胺类缓蚀剂对X65钢抗CO2腐蚀的机理研究[J]. 金属学报, 2006, 42(5): 533-536 .
, , , . INHIBITION MECHANISM OF STEARAMIDE DERIVATIVE ON THE CORROSION OF CO2[J]. Acta Metall Sin, 2006, 42(5): 533-536 .

全文: PDF(883 KB)  
摘要: 通过电化学极化及电化学阻抗谱(EIS)测试研究了一种脂肪酰胺类缓蚀剂对X65低碳钢抗CO2腐蚀的机理, 结果表明, 该类缓蚀剂是一种阳极型缓蚀剂, 属于界面吸附型, 通过负催化机制产生缓蚀作用, 对X65低碳钢抗CO2腐蚀具有良好的效果, 其缓蚀效率随浓度的增加而提高, 存在极值现象, 在0.5 g/L时达到最大. 其阻抗谱有2个时间常数,相应的等效电路的描述码(CDC)为: R(C(R(CR))).
关键词 低碳钢缓蚀剂CO2腐蚀电化学极化    
Abstract:Electrochemical studies were performed in aerated brine solution by electrochemical polarization measures and electrochemical impedance spectroscopy(EIS) measures. Experimental results revealed that stearamide derivative inhibitor acted as a good inhibitor for mild steel in aerated brine solution. The recorded electrochemical data showed that the corrosion resistance was greatly enhanced in the presence of stearamide derivative inhibitor. Polarization curves revealed that the inhibitor tested was an anodic type inhibitor and the inhibition efficiency increased with increasing concentrations to reach maximum at 0.5gL-1. Equivalent circuit of the investigated system was suggested.
Key wordscarbon dioxide corrosion    corrosion inhibitor    EIS    electrochemical polarization
收稿日期: 2005-08-26     
ZTFLH:  TG174  
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