Modified wire beam electrode: a useful tool to evaluate compatibility between organic coatings and cathodic protection

Communication—An Approach to Measuring Local Electrochemical Impedance for Monitoring Cathodic Disbondment of Coatings

“…2h. This may explain a result reported by Le Thu et al 19 that, in a previous attempt to measure coating disbondment using array electrodes (coating thickness 60 μm) under a CP potential of −1.5 V vs.SCE , no significant coating disbondment was observed on direct current maps over a 336 hour exposure period. 19 This is clearly a major limitation of the direct current measurement technique given that a CP potential of −0.95 V Ag/AgCl is close to industry standard CP criteria for practical, coated pipeline.…”

Evaluation of Metal Corrosion under Defective Coatings by WBE and EIS Technique

“…层劣化机理的局部电化学技术 [2,[9][10][11] .Tan 等 [2,10] 最早 将该技术引入到有机涂层失效过程研究当中, 发现 了电极表面涂层的不均匀性, 即涂层表面存在较薄 弱的" 虚 点 ". 由 于 他没有结合使用其他电化学测试 技术, 所以仅根据涂层表面的阻抗信息来推断涂层 下金属腐蚀反应机理有很大的不确定性 [7] .…”

Investigating crevice corrosion of copper and copper alloys using wire beam electrode

“…[2,3]. Unfortunately, these researchers recognised in a limitation state because they merely concentrated on the final conditions that were generally accumulated from various complex and long-term factors affecting crevice corrosion [18][19][20][21][22][23][24][25][26][27]. Furthermore, the conventional electrochemical techniques have also major difficulties in studying this due to the reasons specified elsewhere [28,29].…”