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4 不同极化电位下阴极保护试样的EDS测试结果

Table 4 EDS analysis results of cathodically protected Q345B specimens at different polarization potentials

Polarization potential / V Element Line type Mass fraction / % Mass fraction / % σ Atomic fraction / % -0.80 Mg K-line system 0.36 0.05 0.82 Ca 0.11 0.04 0.16 Fe 99.53 0.06 99.02 -0.95 Mg K-line system 3.10 0.08 6.57 Ca 4.32 0.08 5.57 Fe 92.57 0.12 87.56 -1.05 Mg K-line system 0.20 0.05 0.46 Ca 0.14 0.05 0.20 Fe 99.66 0.07 99.35 -1.15 Mg K-line system 95.19 0.32 97.58 Ca 1.55 0.14 0.96 Fe 3.27 0.30 1.46 -1.25 Mg K-line system 97.42 0.31 98.63 Ca 1.31 0.14 0.80 Fe 1.27 0.28 0.56