海水环境中组合电位极化对铁氧化菌腐蚀的影响

李振欣, 吕美英, 杜敏

Effect of Combined Potential Polarization on Corrosion of X65 Steel in Seawater Inoculated with Iron Oxiding Bacteria

LI Zhenxin, LV Meiying, DU Min

表1 X65钢在不同阴极电位下极化7 d后去除腐蚀产物的激光共聚焦显微镜测量数据

Table 1 CLSM measurement data of the surface of X65 steel after removing corrosion products formed during polarization for 7 d at different cathodic potentials

Condition	N_pit / 1/mm²	d_avg / μm	d_max / μm	D_avg / μm
OCP	45.25	-1.56	-12.85	24.92
-850 to -1050 mV	27.50	-1.47	-8.82	21.07
-1050 to -850 mV	11.75	-1.48	-4.77	20.47