应力和光照共同作用下40Cr钢在3.5%NaCl溶液中的腐蚀行为研究

秦鹏飞, 崔宇, 刘叡, 鞠鹏飞, 王福会, 刘莉

Corrosion Behavior of 40Cr Steel in 3.5%NaCl Solution Under Combined Effect of Stress and Ultraviolet Illumination

QIN Pengfei, CUI Yu, LIU Rui, JU Pengfei, WANG Fuhui, LIU Li

表1 不同实验条件下的40Cr钢在3.5%NaCl溶液中浸泡120 h的EIS拟合结果

Table 1 EIS fitting results of 40Cr steel immersed in 3.5%NaCl solution for 120 h under different experimental conditions

Environment Rs / Ω·cm2 Ceff, 1 / μF·cm-2 n1 R1 / Ω·cm2 Ceff, dl / μF·cm-2 ndl Rct / Ω·cm2 0% strain, dark 4.08 117.6 0.6 0.24 326 0.92 784 0% strain, UV 9.17 28.1 0.59 0.52 411 0.85 575.7 6% strain, dark 2.83 876.7 0.77 229.3 13620 0.81 366.9 6% strain, UV 3.19 853.1 0.8 476.1 14501 0.87 73