船舶EH40钢在低温和常温海水中的腐蚀机理研究

刘家兵, 黄诗雨, 郭娜, 郭章伟, 刘涛

Corrosion Behavior of EH40 Marine Steel in Artificial Seawater at Low- and Ambient-Temperatures

LIU Jiabing, HUANG Shiyu, GUO Na, GUO Zhangwei, LIU Tao

表3 EH40钢样在0和25 ℃海水中浸泡14 d后腐蚀产物膜截面EDS元素质量分数

Table 3 Mass fraction of EDS elements in the film cross-section of the corrosion product of EH40 steel sample after being immersed in seawater at 0 and 25 ℃ for 14 d (mass fraction / %)

Time / d Fe Ca Mg C O Cl 0 ℃ 1 74.66 0.62 0.46 0.44 10.35 0.44 2 83.40 0.52 0.21 0.24 6.33 0.24 25 ℃ 3 26.23 40.75 0.16 8.90 `23.11 0.69 4 1.80 59.51 0.16 7.77 30.00 0.37