Application of micro-electrochemical technologies in atmospheric corrosion of thin electrolyte layer

YU Yang; LU Lin; LI Xiao-gang

doi:10.13374/j.issn2095-9389.2018.06.001

Volume 40 Issue 6

Jun. 2018

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YU Yang, LU Lin, LI Xiao-gang. Application of micro-electrochemical technologies in atmospheric corrosion of thin electrolyte layer[J]. Chinese Journal of Engineering, 2018, 40(6): 649-657. doi: 10.13374/j.issn2095-9389.2018.06.001

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YU Yang, LU Lin, LI Xiao-gang. Application of micro-electrochemical technologies in atmospheric corrosion of thin electrolyte layer[J]. Chinese Journal of Engineering, 2018, 40(6): 649-657. doi: 10.13374/j.issn2095-9389.2018.06.001

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Application of micro-electrochemical technologies in atmospheric corrosion of thin electrolyte layer

doi: 10.13374/j.issn2095-9389.2018.06.001

Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2017-06-29

Abstract

Abstract

The atmospheric corrosion of a metal under a thin electrolyte layer is caused due to the adsorption of the thin electrolyte layer on metal surfaces. As the electrolyte layer is considerably thin, the application of a traditional three-electrode system is considerably difficult; therefore, localized electrochemical technologies are of great use in this field. Herein, different localized electrochemical techniques for atmospheric corrosion under a thin liquid film were discussed. In particular, the applications of scanning Kelvin probe microscopy, wire-beam electrodes, and micro-droplet electrodes were introduced and comprehensively explained. In addition, the key parameters of the tests, which show the relation between thin film/droplet size and corrosion kinetics, were summarized. Furthermore, the issues that currently exist in this field and the potential for improvement was proposed in this research.
- atmospheric corrosion,
- thin electrolyte layer,
- localized electrochemical technology,
- Volta potential,
- oxygen concentration polarization,
- corrosion microcell

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References

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