镀锌钢在模拟海洋大气环境下的腐蚀行为

钟西舟, 王振尧, 刘艳洁, 王彬彬, 白芳, 窦志宏

Corrosion Behavior of Galvanized Steel in Simulated Ocean Atmosphere

ZHONG Xizhou, WANG Zhenyao, LIU Yanjie, WANG Binbin, BAI Fang, DOU Zhihong

表1 镀锌钢试样腐蚀不同时间后的EIS拟合参数

Table 1 Fitting parameters of EIS of galvanized steel after corroded for 24, 48, 9, 192 and 240 h

Corrosion time / h Rct / Ωcm2 Rr2 / Ωcm2 Rr1 / Ωcm2 Rs / Ωcm2 Qr2 / Fcm-2 Qr1 / Fcm-2 Qct / Fcm-2 24 816.1 40.35 --- 11.050 1.585×10-3 --- 2.41×10-4 48 509.2 11.99 --- 9.611 2.830×10-3 --- 2.41×10-4 96 1.38×104 129.10 43.25 9.118 5.820×10-4 6.70×10-4 7.86×10-4 192 3156 360.50 94.31 7.442 9.520×10-4 6.94×10-4 1.21×10-3 240 670.4 87.32 --- 11.090 1.007×10-2 --- 2.90×10-3