转动条件下Q345B钢在人工海水中阴极保护效果试验研究

郑中逸, 冯毅翔, 宋沁峰, 甘甜思雨, 苑旺, 董亮

Effectiveness of Cathodic Protection on Rotating Test-piece of Q345B Steel in Artificial Seawater

ZHENG Zhongyi, FENG Yixiang, SONG Qinfeng, GAN Tiansiyu, YUAN Wang, DONG Liang

表7 不同保护电位条件下Q345钢电化学阻抗谱的拟合结果

Table 7 Fitting results of EIS of Q345B at different polarization potentials

Protective potential / V Rs / Ω·cm2 Rf / Ω·cm2 CPE1-T CPE1-P Rt / Ω·cm2 CPE2-T CPE2-P Normal CP 9.227 803.4 1.368 × 10-3 0.74352 1524 3.88 × 10-3 0.75733 -0.80 8.693 15.96 1.147 × 10-2 0.4684 369.9 1.749 × 10-2 0.71615 -0.95 5.185 - 2.247 × 10-3 0.59777 1618 - - -1.05 6.188 15.88 2.135 × 10-2 0.42697 988.5 1.095 × 10-2 0.66248 -1.15 8.3 40.26 2.305 × 10-3 0.52976 1501 2.562 × 10-3 0.68743 -1.25 12.05 206 2.167 × 10-3 0.56939 12083 2.647 × 10-3 0.50941