Cu-15Ni-8Sn合金在含S2- 的3.5%NaCl溶液中的腐蚀行为

范世林, 杜娟, 杨少丹, 周延军, 宋克兴, 张国赏, 岳鹏飞, 杨冉, 王晓军

Corrosion Behavior of Cu-15Ni-8Sn Alloy in 3.5%NaCl Solution Containing S2-

FAN Shilin, DU Juan, YANG Shaodan, ZHOU Yanjun, SONG Kexing, ZHANG Guoshang, YUE Pengfei, YANG Ran, WANG Xiaojun

表1 Cu-15Ni-8Sn合金在不添加Na2S的3.5%NaCl水溶液中浸泡不同时间后的EIS拟合参数

Table 1 Fitting parameters of EIS of Cu-15Ni-8Sn alloy after immersion in 3.5%NaCl solution without addition of Na2S for different time

Time / d Rs / Ω·cm2 Qf-Y0 / Ω-1·cm-2·s n Qf-n Rf / Ω·cm2 Qdl-Y0 / Ω-1·cm-2·s n Qdl-n Rt / Ω·cm2 1 5.696 5.574 × 10-5 0.7457 3.491 1.500 × 10-4 0.7578 2.200 × 104 3 7.284 2.397 × 10-4 0.7258 4.610 × 101 2.451 × 10-4 0.6561 3.743 × 104 6 6.042 9.567 × 10-5 0.6743 2.235 × 101 2.200 × 10-4 0.6959 3.132 × 104 12 5.730 8.860 × 10-5 0.6577 2.785 × 101 2.571 × 10-4 0.6835 2.835 × 104 18 5.326 7.027 × 10-5 0.6367 2.580 × 101 3.513 × 10-4 0.6762 2.328 × 104 24 5.660 6.378 × 10-5 0.6421 2.416 × 101 3.697 × 10-4 0.6808 2.302 × 104 30 6.022 6.192 × 10-4 0.6346 2.511 × 101 4.221 × 10-4 0.6935 2.319 × 104