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2 20 ℃时冷轧钢在添加WGHE，SLS和WGHE/SLS的2.0 mol/L H₃PO₄溶液中的动电位极化曲线拟合参数

Table 2 Fitting electrochemical parameters of potentiodynamic polarization curves of cold-rolled steel at 20 ℃ in 2.0 mol/L H₃PO₄ solutions containing WGHE, SLS and WGHE/SLS

c (WGHE) / mg·L^-1	c (SLS) / mg·L^-1	E_corr / mV	I_corr / μA·cm^-2	b_c / mV·dec^-1	b_a / mV·dec^-1	η_P / %
0	0	-436	493.9	266	33	---
10	0	-463	219.5	248	22	55.6
50	0	-495	162.5	228	21	67.1
100	0	-519	110.2	226	18	77.7
0	10	-434	334.0	253	36	32.4
0	50	-449	157.8	213	53	68.1
0	100	-436	137.5	278	42	72.2
30	70	-441	35.3	109	41	92.9
50	50	-494	11.4	120	74	97.7
70	30	-414	16.4	117	42	96.7