Modeling of corrosion inhibition of copper-nickel alloy in hydrochloric acid by benzotriazole

被引：0
|
作者：
A. A. Khadom
A. S. Yaro
机构：
[1] University of Daiyla,Mechanical Engineering Department, College of Engineering
[2] University of Baghdad,Chemical Engineering Department, College of Engineering
来源：
Russian Journal of Physical Chemistry A | 2011年 / 85卷
关键词：
activation parameters; corrosion inhibition; copper-nickel alloy; benzotriazole;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The corrosion inhibition of copper-nickel alloy by benzotriazole (BTA) in 1.5 M HCl has been investigated by weight loss and polarization techniques at different temperatures. Maximum value of inhibitor efficiency was 99.8% at 35°C and 0.1 M inhibitor concentration, while the lower value was 86.3% at 65°C and 0.02 M inhibitor concentration. The activation energy values were higher in presence of BTA which indicate that in presence of inhibitor, corrosion reaction requires more energy to occur. Two mathematical models were used to represent the weight loss corrosion rate data with high correlation coefficients. Electrochemical polarization measurements showed that BTA is a mixed type inhibitor.
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页码：2005 / 2012
页数：7
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