微区电化学测量技术在金属电偶腐蚀中的应用

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

微区电化学测量技术可在微米级甚至亚微米级尺度对金属电偶腐蚀进行原位检测,为深入研究金属电偶腐蚀提供了新途径。介绍了金属电偶腐蚀的基本原理及其主要影响因素,综述了丝束电极技术(WBE)、局部电化学阻抗谱技术(LEIS)、扫描振动电极技术(SVET)、扫描电化学显微技术(SECM)、扫描开尔文探针技术(SKP)等常用的微区电化学测量技术的优缺点及应用现状,最后对其未来发展进行了展望。

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 gal-vanic corrosion research.Finally,the future development of the micro-area electrochemical measurement technique was prospected.