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2 EH40钢样在0和25 ℃海水中浸泡不同时间后表面腐蚀产物膜 EDS元素质量分数

Table 2 EDS element fraction of surface corrosion product film of EH40 steel sample after immersion in seawater at 0 and 25 ℃ for different time (mass fraction / %)

Time / d Fe Ca Mg C O Cl 0 ℃ 1 72.45 0.05 0.39 6.96 16.70 0.06 3 69.18 0.21 0.29 4.44 23.39 0.16 7 64.55 0.18 0.42 5.21 26.71 1.00 14 47.06 0.85 4.81 10.66 33.92 0.53 25 ℃ 1 80.06 0.11 0.68 7.62 8.57 0.05 3 65.45 0.27 0.92 5.61 24.70 0.95 7 63.82 0.82 0.06 12.85 17.04 4.58 14 40.12 21.52 0.16 8.43 28.09 1.40