细晶FH40船用低温钢在海水-海冰中耦合失效行为研究

孙士斌, 高浩, 常雪婷, 王东胜

Failure Behavior of Fine-grained FH40 Marine Low-temperature Steel in Conditions of Coupling Effect of Seawater-sea Ice

SUN Shibin, GAO Hao, CHANG Xueting, WANG Dongsheng

表2 2种FH40钢样在有无外加保护电位下的极化曲线拟合参数

Table 2 Fitting parameters of polarization curves of A1 and A2 in Fig.6

Parameters Ecorr, SCE / V Icorr / μA·cm-2 ba / mV·dec-1 bc / mV·dec-1 Crate / mm·a-1 -0.4 V A1 1.92 × 10-3 4.07 × 10-3 -254.28 173.95 4.28 × 10-3 A2 1.95 × 10-3 3.15 × 10-3 -265.33 226.80 3.42 × 10-3 OCP A1 2.01 × 10-3 7.19 × 10-3 -200.15 265.17 6.22 × 10-3 A2 2.08 × 10-3 6.35 × 10-3 -215.52 270.21 5.29 × 10-3