Corrosion Behavior of Zinc Covered with Thin Electrolyte Layers under External Electric Field

Authors

Xu-jie YUAN, Key Laboratory of Shanghai Colleges and Universities for Electric Power Corrosion Control and Applied Electrochemistry, Shanghai University of Electric Power, Shanghai 200090, China;CCS-DNV Technology Institute, Shanghai 201417, China;
Jun-xi ZHANG, Key Laboratory of Shanghai Colleges and Universities for Electric Power Corrosion Control and Applied Electrochemistry, Shanghai University of Electric Power, Shanghai 200090, China;Follow
Shi-ming ZHANG, Key Laboratory of Shanghai Colleges and Universities for Electric Power Corrosion Control and Applied Electrochemistry, Shanghai University of Electric Power, Shanghai 200090, China;
Tian TAN, Key Laboratory of Shanghai Colleges and Universities for Electric Power Corrosion Control and Applied Electrochemistry, Shanghai University of Electric Power, Shanghai 200090, China;
Qi-meng CHEN, Key Laboratory of Shanghai Colleges and Universities for Electric Power Corrosion Control and Applied Electrochemistry, Shanghai University of Electric Power, Shanghai 200090, China;

Corresponding Author

Jun-xi ZHANG(zhangjunxi@shiep.edu.cn)

Abstract

The corrosion behavior of zinc covered with thin electrolyte layers (TELs) under an application of external electric field was investigated by performing corrosion potential and cathodic polarization current measurements. The results showed that the Ecorr and ic values first increased and then decreased with the increase of electrolyte layer thickness. Pure zinc exhibited the maximum corrosion potential as the TELs increased to 400 μm under the controls of cathodic process and corrosion products. The application of external electric field resulted in either a negative shift in corrosion potential of zinc or an increase of cathodic current. The effect of external electric field on the electrode process was discussed in this paper.

Graphical Abstract

Keywords

external DC electric field, zinc, TELs, atmospheric corrosion

DOI Link

https://doi.org/10.61558/2993-074X.2133

Publication Date

2013-10-28

Online Available Date

2013-07-08

Revised Date

2013-07-08

Received Date

2013-01-30

Recommended Citation

Xu-jie YUAN, Jun-xi ZHANG, Shi-ming ZHANG, Tian TAN, Qi-meng CHEN. Corrosion Behavior of Zinc Covered with Thin Electrolyte Layers under External Electric Field[J]. Journal of Electrochemistry, 2013 , 19(5): 430-436.
DOI: 10.61558/2993-074X.2133
Available at: https://jelectrochem.xmu.edu.cn/journal/vol19/iss5/6