交变应力频率对E690钢在3.5%NaCl溶液中腐蚀电化学行为的影响

张腾, 刘静, 黄峰, 胡骞, 戈方宇

Effect of Alternating Stress Frequency on Corrosion Electrochemical Behavior of E690 Steel in 3.5%NaCl Solution

ZHANG Teng, LIU Jing, HUANG Feng, HU Qian, GE Fangyu

表1 不同加载频率下E690钢在3.5%NaCl溶液中极化曲线拟合参数

Table 1 Fitting parameters of polarization curves for E690 steel in 3.5%NaCl solution under different loading frequencies

Loading frequency / Hz bamV·dec-1 bcmV·dec-1 IcorrmA·cm-2 EcorrV Free 58.0 -677.4 2.01×10-2 -0.6522 0.1 70.1 -383.1 2.17×10-2 -0.6863 0.5 76.0 -491.9 2.54×10-2 -0.6641 1.0 84.6 -545.5 3.60×10-2 -0.6760 1.3 88.0 -553.7 3.71×10-2 -0.6426 1.8 84.1 -835.2 3.66×10-2 -0.5895 2.0 82.5 -1039.5 3.87×10-2 -0.6076