海水流速对经抛光和钝化表面处理的2205不锈钢点蚀的影响

邢少华, 彭文山, 钱峣, 李相波, 马力, 张大磊

Effect of Seawater Flow Velocity on Pitting Corrosion of 2205 Stainless Steel with Different Surface Treatments

XING Shaohua, PENG Wenshan, QIAN Yao, LI Xiangbo, MA Li, ZHANG Dalei

表5 钝化处理2205不锈钢试样在不同流速海水中腐蚀表面元素组成 (atomic fraction / %)

Table 5 Elemental compositions of the surfaces of passivated 2205 stainless steel samples after corrosion in flowing seawater

V / m·s-1 Si S Ni Fe Cr Mn Mo 0 0.75 - 4.43 58.70 18.84 1.23 1.38 1 1.18 0.92 4.27 55.50 17.92 0.95 1.20 3 0.63 - 4.02 57.14 18.02 1.21 1.27 5 0.58 - 4.26 56.68 17.40 0.79 1.26