低碳钢Q235、管线钢L415和压力容器钢16MnNi在湛江高湿高辐照海洋工业大气环境下的初期腐蚀行为

李小涵, 曹公望, 郭明晓, 彭云超, 马凯军, 王振尧

Initial Corrosion Behavior of Carbon Steel Q235, Pipeline Steel L415, and Pressure Vessel Steel 16MnNi Under High Humidity and High Irradiation Coastal-Industrial Atmosphere in Zhanjiang

LI Xiaohan, CAO Gongwang, GUO Mingxiao, PENG Yunchao, MA Kaijun, WANG Zhenyao

表4 等效电路的拟合参数

Table 4 Fitting parameters of the equivalent circuit

Steel Rs / (10-4 Ω·cm2) Qr / (10-9 F·cm-2) nr Rr / (Ω·cm2) Qdl / (10-3 F·cm-2) ndl Rct / (Ω·cm2) Zw / (10-2 Ω·cm2) χ2 / 10-4 Q235 2.674 5.617 1 40.47 2.216 0.4563 31.39 5.296 3.98 L415 106.7 5.602 1 51.55 1.588 0.3364 72.15 4.795 3.68 16MnNi 13.68 5.160 1 41.46 1.134 0.2762 61.60 5.365 2.61