静态和动态海水中B10铜镍合金管的腐蚀行为研究

王晓, 刘峰, 李焰, 张威, 李相波

Corrosion Behavior of B10 Cu-Ni Alloy Pipe in Static and Dynamic Seawater

WANG Xiao, LIU Feng, LI Yan, ZHANG Wei, LI Xiangbo

表1 B10管在静态和动态下的EIS拟合数据

Table 1 Fitting data of EIS of B10 pipe in static and dynamic seawater

Condition Time / d Rs / Ω·cm2 CPE1 / μF·cm-2 n1 Rf / Ω·cm² CPE2 / μF·cm-2 n2 Rct / Ω·cm2 Static 0 21.58 344.3 0.6842 2,736 --- --- --- 1 28.86 162.3 0.6464 17,500 --- --- --- 3 23.55 74.01 0.6609 86,380 24.05 0.8036 53.94 7 29.97 38.25 0.8755 45,660 101.6 0.6589 52.89 15 15.40 13.60 0.5995 27,570 195.4 0.6833 57.27 30 15.80 14.80 0.7581 14,990 318.4 0.6861 35.04 60 12.98 18.65 0.8025 16,430 337.8 0.6349 18.93 Dynamic 0 28.42 40.03 0.6118 2,693 348.3 0.7572 25.90 1 31.34 35.73 0.6934 4,573 347.3 0.8165 25.33 3 29.54 37.45 0.7914 8,348 131.3 0.8082 24.60 7 30.71 37.64 0.7981 9,285 243.5 0.7923 26.76 15 21.54 46.98 0.8107 8,501 299.5 0.7085 21.78 30 22.12 36.04 0.8506 9,684 254.3 0.7126 27.60 60 29.59 23.33 0.8731 31,120 200.4 0.7036 63.39