NiCu低合金钢在含Cl<sup>-</sup>的除氧NaHCO<sub>3</sub>溶液中的腐蚀行为研究

NiCu低合金钢在含Cl^-的除氧NaHCO₃溶液中的腐蚀行为研究

卢云飞, 阳靖峰, 董俊华, 柯伟

THE CORROSION BEHAVIOUR OF NiCu LOW ALLOY STEEL IN A DEAERATED BICARBONATE SOLUTION CONTAINING Cl^- IONS

LU Yunfei, YANG Jingfeng, DONG Junhua, KE Wei

表2 实验材料在浸泡初期的电化学阻抗谱拟合结果

Table 2 Fitted results for EIS data measured during stage I

Steel	Time	Y_0,HF	n_HF	R_e	Y_0,dl	n_dl	R_ct	Y_0,W
	d	S·sⁿ·cm^-²		W·cm²	S·sⁿ·cm^-²		W·cm²	S·s^0.5·cm^-²
NiCu	1	-	-	17.61	0.0002497	0.8092	3280	0.03069
	4	-	-	13.40	0.0005871	0.8940	2234	0.01435
	10	-	-	10.13	0.0018340	0.8986	1291	0.02672
Q235	4	2.974×10^-⁸	1	22.47	0.0003375	0.8380	1895	0.02753
	10	2.902×10^-⁸	1	22.61	0.0004578	0.8510	2229	0.04776
	17	3.365×10^-⁸	1	22.52	0.0006121	0.8304	1962	0.05585