磷酸中核桃青皮复配缓蚀剂对冷轧钢的缓蚀协同效应

李向红, 徐昕, 雷然, 邓书端

Synergistic Inhibition Effect of Walnut Green Husk Extract Complex Inhibitors on Steel in Phosphoric Acid

LI Xianghong, XU Xin, LEI Ran, DENG Shuduan

表3 20 ℃时冷轧钢在添加WGHE，SLS和WGHE/SLS的2.0 mol/L H3PO4溶液中的EIS拟合参数

Table 3 Fitting parameters of EIS of cold-rolled steel in 2.0 mol/L H3PO4 solutions containing WGHE, SLS and WGHE/SLS at 20 ℃

c / mg·L-1 Rs / Ω·cm2 Rt / Ω·cm2 n Q / μΩ-1·sn·cm-2 fmax / Hz Cdl / μF·cm-2 χ2 ηR / % WGHE SLS 0 0 2.1 25.1 0.9033 692.1 13.74 450 2.0×10-3 --- 10 0 2.8 173.1 0.9127 151.5 7.88 108 1.7×10-2 85.5 50 0 2.4 205.5 0.8689 201.8 4.52 130 1.7×10-2 87.8 100 0 2.7 241.0 0.9122 241.0 7.88 171 2.8×10-3 89.6 0 10 2.4 94.8 0.8707 180.9 13.74 102 3.6×10-3 73.5 0 50 2.9 128.2 0.8955 174.2 13.74 109 1.5×10-3 80.4 0 100 2.9 255.2 0.9293 139.4 4.52 110 2.5×10-3 90.2 30 70 2.2 277.7 0.8424 148.7 7.88 80 7.1×10-3 91.0 50 50 3.1 552.8 0.8270 95.7 2.59 59 1.1×10-1 95.5 70 30 1.3 428.3 0.9113 65.8 7.88 46 2.2×10-3 94.1