Corrosion Inhibition of Magnesium Alloy in 3.5% NaCl Medium by Tungstate

Authors

Ling-jie LI, College of Chemistry and Chemical Engineering,Chongqing University,Chongqing 400044,China;College of Materials Science and Engineering,Chongqing University,Chongqing 400044,China;
Zhi-ming YAO, College of Chemistry and Chemical Engineering,Chongqing University,Chongqing 400044,China;
Jing-lei LEI, College of Chemistry and Chemical Engineering,Chongqing University,Chongqing 400044,China;
Dong-hai HE, College of Chemistry and Chemical Engineering,Chongqing University,Chongqing 400044,China;
Sheng-tao ZHANG, College of Chemistry and Chemical Engineering,Chongqing University,Chongqing 400044,China;
Fu-sheng PAN, College of Materials Science and Engineering,Chongqing University,Chongqing 400044,China;

Corresponding Author

Jing-lei LEI(JLLei@cqu.edu.cn)

Abstract

Electrochemical impedance spectroscopy(EIS),Tafel polarization curves and scanning electron microscopy(SEM) were used to study the corrosion inhibition of AZ61 magnesium alloy in 3.5% NaCl medium with tungstate.Results showed that tungstate demonstrates strong inhibition to the corrosion of AZ61 magnesium alloy.At the concentration of 0.01 mol/L,tungstate has a high inhibition efficiency 75.5%.Tungstate is an anodic inhibitor that mainly inhibited the anodic reactions of magnesium alloy through forming a compact protective layer that covered the magnesium alloy surface active sites.

Keywords

magnesium alloy, corrosion, tungstate, inhibition, NaCl medium

DOI Link

https://doi.org/10.61558/2993-074X.1936

Publication Date

2008-11-28

Online Available Date

2008-11-28

Revised Date

2008-11-28

Received Date

2008-11-28

Recommended Citation

Ling-jie LI, Zhi-ming YAO, Jing-lei LEI, Dong-hai HE, Sheng-tao ZHANG, Fu-sheng PAN. Corrosion Inhibition of Magnesium Alloy in 3.5% NaCl Medium by Tungstate[J]. Journal of Electrochemistry, 2008 , 14(4): 427-430.
DOI: 10.61558/2993-074X.1936
Available at: https://jelectrochem.xmu.edu.cn/journal/vol14/iss4/17