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5 不同频率条件下Q345B钢电化学阻抗谱的拟合结果

Table 5 Fitting results of electrochemical impedance spectra of Q345B steel at different frequencies

Frequency / r·d-1 Rs / Ω·cm2 Rt / Ω·cm2 Rf / Ω·cm2 CPE1-T CPE1-P CPE2-T CPE2-P W-R W-T W-P Normal CP 9.227 1524 803.4 1.368 × 10-3 0.74352 3.88 × 10-3 0.75733 - - - 0.010 20.79 436.5 - 1.168 × 10-4 0.50827 - - 1455 50.84 0.59921 0.015 12.05 12083 206 2.167 × 10-3 0.56939 2.647 × 10-3 0.50941 - - - 0.020 4.199 15.18 - 1.530 × 10-3 0.6165 - - 690.3 18.66 0.47257