单相流冲刷条件下一种低合金高强钢的腐蚀行为研究

傅江悦, 郭建喜, 杨延格, 冷哲, 王文

Erosion-corrosion Behavior of a High Strength Low Alloy Steel in Flowing 3.5%NaCl Solution

FU Jiangyue, GUO Jianxi, YANG Yange, LENG Zhe, WANG Wen

表1 静态浸泡和动态冲刷后的动电位极化曲线拟合参数

Table 1 Fitting parameters of polarization curves of HSLA steel after static immersion and dynamic erosion

State Time / h Ecorr / V Icorr / A·cm-2 Eb / V Ip / A·cm-2 Static immersion 0 -0.483 2.88 × 10-6 -0.341 1.51 × 10-5 2 -0.567 3.28 × 10-6 -0.338 4.50 × 10-5 12 -0.493 2.02 × 10-6 72 -0.539 4.68 × 10-6 -0.398 6.50 × 10-5 216 -0.661 8.34 × 10-6 -0.394 1.31 × 10-4 288 -0.634 9.42 × 10-6 -0.383 1.47 × 10-4 480 -0.586 4.55 × 10-6 -0.377 6.50 × 10-5 Dynamic flushing 0 -0.479 3.05 × 10-6 -0.341 1.51 × 10-5 2 -0.599 4.02 × 10-6 -0.402 4.90 × 10-5 12 -0.616 5.68 × 10-6 -0.351 1.16 × 10-4 72 -0.674 1.84 × 10-5 216 -0.602 3.42 × 10-5 288 -0.560 3.90 × 10-5 480 -0.519 8.06 × 10-5