Application of Micro-Area Electrochemical Measurement Technique in Metal Galvanic Corrosion

Abstract

Micro-area electrochemical measurement technique can detect metal galvanic corrosion in situ at the micron or even sub-micron scale, which provides a new way for further study of metal galvanic corrosion. In this paper, the basic principle and main influencing factors of metal galvanic corrosion were introduced. The advantages, disadvantages and application status of commonly used micro-area electrochemical measurement techniques such as wire beam electrode (WBE), localized electrochemical impedance spectroscopy (LEIS), scanning vibrating electrode technique (SVET), scanning electrochemical microscopy (SECM), and scanning Kelvin probe (SKP) were reviewed in metal galvanic corrosion research. Finally, the future development of the micro-area electrochemical measurement technique was prospected.

Keywords

• galvanic corrosion|influencing factors|micro-area electrochemical measurement technique|application