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>

Processing math: 100%

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3 低碳钢在0.05 mol/L

$H C O_{3}^{-}$

溶液中浸泡的电化学阻抗拟合结果

Table 3 Fitting results for EIS plots in 0.05 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	-	-	-	0.35	0.7	2.4	-
5	0.12	0.9	0.06	0.28	0.6	2.6	-
23	0.43	0.8	5.90	0.60	0.6	2.8	5.6×10^-5
39	0.35	0.7	22.0	0.19	0.6	2.4	2.1×10^-4
46	0.07	1.0	34.0	0.47	0.6	1.9	1.7×10^-4
52	0.07	1.0	48.0	0.72	0.7	1.5	3.4×10^-4