Inhibition of Amino Acids Against Steel in Hydrochloric Acid Solution

Authors

Ming-yan CHENG, Jiangxi University of Science and Technology,School of Materials and Chemical Engineering,Ganzhou 341000,China;
Wei-ming WU, Jiangxi University of Science and Technology,School of Materials and Chemical Engineering,Ganzhou 341000,China;School of Materials Science and Engineering,University of Science andTechnology Beijing,Beijing 100083,China;
He-ming LIU, Jiangxi University of Science and Technology,School of Materials and Chemical Engineering,Ganzhou 341000,China;
Hai-yan DU, Jiangxi University of Science and Technology,School of Materials and Chemical Engineering,Ganzhou 341000,China;

Abstract

The inhibition effect of glutamic acid towards the corrosion of X65 steel in hydrochloric acid solution(10%) was investigated using polarization techniques、electrochemical impedance spectroscopy(EIS) and SEM.The corrosion rate,corrosion potential(Ecoor),polarization resistance(Rp) and inhibition efficiency(η) were determined.The results revealed that the inhibitor is a mixed type inhibitor.It has promising corrosion inhibition efficiency at low concentrations.The inhibition efficiency(η) increased with increasing the concentration.The maximum inhibition efficiency appeared at 0.3 g·L-1.

Keywords

corrosion inhibitor, glutamic acid, hydrochloric acid, EIS

DOI Link

https://doi.org/10.61558/2993-074X.1891

Publication Date

2008-05-28

Online Available Date

2008-05-28

Revised Date

2008-05-28

Received Date

2008-05-28

Recommended Citation

Ming-yan CHENG, Wei-ming WU, He-ming LIU, Hai-yan DU. Inhibition of Amino Acids Against Steel in Hydrochloric Acid Solution[J]. Journal of Electrochemistry, 2008 , 14(2): 200-204.
DOI: 10.61558/2993-074X.1891
Available at: https://jelectrochem.xmu.edu.cn/journal/vol14/iss2/18