镀锌钢接地材料在酸性土壤中的腐蚀行为研究

郑敏聪, 李建华, 聂新辉, 李博文, 台闯

Corrosion Behavior of Galvanized Q235 Steel for Grounding in Acid Soils

ZHENG Mincong, LI Jianhua, NIE Xinhui, LI Bowen, TAI Chuang

表2 动电位极化曲线Tafel拟合结果

Table 2 Tafel fitting results of polarization curves

pH	Time / d	E_corr / V	I_corr / Acm^-²	β_a / mV	β_c / mV
2.2	1	-1.03	9.62×10^-⁶	144.98	194.83
	2	-1.04	9.92×10^-⁶	176.34	236.78
	4	-1.05	9.55×10^-⁶	185.83	216.02
	7	-1.05	7.16×10^-⁶	197.35	197.36
	13	-1.04	3.23×10^-⁶	111.05	135.37
	20	-1.03	1.77×10^-⁶	84.52	149.06
3.6	1	-1.00	6.14×10^-⁶	187.35	391.48
	2	-1.04	9.92×10^-⁶	220.88	456.92
	7	-1.00	2.70×10^-⁶	116.97	145.03
	13	-0.99	3.31×10^-⁶	150.67	201.67
	20	-0.98	1.54×10^-⁶	76.73	116.90
4.0	1	-0.10	5.01×10^-⁶	231.79	406.42
	2	-1.00	4.30×10^-⁶	232.09	311.20
	4	-0.96	6.16×10^-⁶	259.53	383.20
	7	-0.95	6.16×10^-⁶	255.35	356.25
	13	-0.97	4.07×10^-⁶	177.58	307.02
	20	-1.00	1.93×10^-⁶	104.93	206.97