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;Follow
• 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;

Corresponding Author

Ming-yan CHENG(minachem2006@126.com)

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 (E_coor), polarization resistance (R_p) 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

2007-12-09

Received Date

2007-11-20

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