环境因素对X100钢表面钝化膜性能的影响

赵阳, 梁平, 史艳华, 张云霞

Influence of Environmental Factors on Property of Passive Film Formed on X100 Pipeline Steel

ZHAO Yang, LIANG Ping, SHI Yanhua, ZHANG Yunxia

表3 不同条件下电化学阻抗谱的拟合结果

Table 3 Fitting results of the electrochemical impedance spectroscopies obtained under different conditions

pH Formation potential / V Rf×104 Ωcm2 [Cl-] mol/L Formation potential / V Rf×103 Ωcm2 Temperature ℃ Formation potential / V Rf×104 Ωcm2 9.27 0.1 1.112 0.001 0.1 9.621 20 0.1 11.82 0.2 1.652 0.2 9.758 0.2 14.14 0.3 3.626 0.3 9.898 0.3 10.67 0.4 4.009 0.4 10.257 0.4 6.058 9.78 0.1 1.217 0.003 0.1 7.913 40 0.1 8.932 0.2 1.897 0.2 8.345 0.2 6.027 0.3 4.654 0.3 9.165 0.3 5.469 0.4 6.568 0.4 9.752 0.4 5.285 10.84 0.1 1.362 0.005 0.1 6.586 60 0.1 4.311 0.2 3.288 0.2 7.894 0.2 5.124 0.3 5.678 0.3 8.965 0.3 3.461 0.4 7.895 0.4 9.968 0.4 6.156