模拟高放废物地质处置环境下重碳酸盐浓度对低碳钢活化/钝化腐蚀倾向的影响<sup>*</sup>

模拟高放废物地质处置环境下重碳酸盐浓度对低碳钢活化/钝化腐蚀倾向的影响^*

文怀梁, 董俊华, 柯伟, 陈文娟, 阳靖峰, 陈楠

ACTIVE/PASSIVE BEHAVIOR OF LOW CARBON STEEL IN DEAERATED BICARBONATE SOLUTION

WEN Huailiang, DONG Junhua, KE Wei, CHEN Wenjuan, YANG Jingfeng, CHEN Nan

表2 低碳钢在0.02 mol/L

H C O_{3}^{-}

溶液中浸泡的电化学阻抗拟合结果

Table 2 Fitting results for EIS plots in 0.02 mol/L

H C O_{3}^{-}

solution

Time / d	Y_r mS·sⁿ·cm^-2	n_r	R_r Ω·cm²	Y_dl mS·sⁿ·cm^-2	n_dl	R_ct kΩ·cm²	Y_w mS·s^0.5·cm^-2
Initial	-	-	-	0.34	0.7	2.2	-
23	0.21	1.0	26	6.00	0.5	1.0	0.60
29	0.13	1.0	31	5.50	0.6	1.6	0.32
35	0.27	1.0	38	5.00	0.6	1.9	1.30
39	1.10	0.7	71	5.50	0.6	1.9	4.0×10^-3