羟基亚乙基二膦酸对20SiMn钢在含Cl-混凝土模拟孔隙液中的缓蚀行为
曹凤婷1,2, 魏洁1, 董俊华1(
), 柯伟1, 王铁钢2, 范其香2
), 柯伟1, 王铁钢2, 范其香2
Corrosion Inhibition Behavior of 1-Hydroxyethylidene-1, 1-Diphosphonic Acid on 20SiMn Steel in Simulated Concrete Pore Solution Containing Cl-
CAO Fengting1,2, WEI Jie1, DONG Junhua1(), KE Wei1, WANG Tiegang2, FAN Qixiang2
), KE Wei1, WANG Tiegang2, FAN Qixiang2
图5. 钝化阶段、点蚀阶段无感抗弧以及点蚀阶段有感抗弧的等效模拟电路图
Fig.5. The equivalent circuits used to fit the EIS of passive stage (a), and pitting corrosion stage without (b) and with (c) inductance arc (Rs—the solution resistance, Qf—the constant phase element (CPE) of the film, Rf —the resistance of passive film, Qct—the CPE of the electric double layer, Rct—the charge transfer resistance, L—the equivalent inductance of pitting corrosion, RL—the equivalent resistance of pitting corrosion)
