镀锌钢接地材料在酸性土壤中的腐蚀行为研究

郑敏聪, 李建华, 聂新辉, 李博文, 台闯

Corrosion Behavior of Galvanized Q235 Steel for Grounding in Acid Soils

ZHENG Mincong, LI Jianhua, NIE Xinhui, LI Bowen, TAI Chuang

表1 镀锌钢在酸化土壤中的电化学参数

Table1 Electrochemical parameters of galvanized steel in acidified soils

pH Time / d Rs / Ω Rf / Ω Q / F H z 1 - n 1 n1 Rct / Ω Q / F H z 1 - n 2 n2 L / H 2.2 0.125 260.10 522.30 2.41×10-9 1.057 7363 9.91×10-9 0.589 10.68 0.33 268.90 488.50 2.89×10-9 1.075 4673 1.05×10-8 0.588 4.79 1 87.46 686.70 2.28×10-9 1.020 4157 1.10×10-8 0.588 --- 2 90.26 606.40 2.01×10-9 1.009 3378 1.09×10-8 0.581 --- 4 68.61 589.50 1.93×10-9 1.012 3356 1.00×10-8 0.577 --- 7 49.63 659.40 1.38×10-9 0.981 4353 1.17×10-8 0.594 --- 13 73.23 587.50 1.61×10-9 0.986 6386 2.38×10-8 0.621 --- 20 86.06 368.40 2.25×10-9 0.992 9600 5.02×10-8 0.641 --- 3.6 0.125 13.29 1398 2.46×10-10 0.762 13592 4.26×10-8 0.640 10.53 0.33 209.60 1018 1.26×10-9 0.808 9774 3.95×10-8 0.631 5.13 1 201.40 864.30 2.04×10-9 0.842 8028 3.15×10-8 0.621 --- 2 84.47 834.40 1.71×10-9 0.995 6815 2.50×10-8 0.607 --- 7 153.80 677.30 2.04×10-9 0.940 9200 2.43×10-8 0.603 --- 13 100.70 636.20 2.28×10-9 0.990 10698 2.10×10-8 0.594 --- 20 44.35 578.60 1.25×10-9 0.969 12839 2.60×10-8 0.598 --- 4.0 1 4.83×10-5 1501 8.59×10-10 0.949 11292 7.35×10-9 0.577 --- 2 1.01×10-5 1548 8.30×10-10 0.952 10176 5.82×10-9 0.569 --- 4 1.67×10-5 1404 7.86×10-10 0.923 8500 6.17×10-9 0.563 --- 7 1.54×10-6 1363 6.95×10-10 0.909 8148 6.02×10-9 0.556 --- 13 9.68×10-7 1069 6.36×10-10 0.891 11398 6.27×10-9 0.552 --- 20 29.73 622.70 8.36×10-10 0.921 15313 3.43×10-9 0.525 ---