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2 Cu-15Ni-8Sn合金在含10 mg/L Na2S的3.5%NaCl水溶液中浸泡不同时间后的EIS拟合参数

Table 2 Fitting parameters of EIS of Cu-15Ni-8Sn alloy after immersion in 3.5%NaCl aqueous solution containing 10 mg/L Na2S for different time

Time / d Rs / Ω·cm2 Qdl-Y0 / Ω-1·cm-2·s n Qdl-n Rf / Ω·cm2 Qdl-Y0 / Ω-1·cm-2·s n Qdl-n Rt / Ω·cm2 W / 10-4·Ω-1·cm-2·s1/2 1 7.398 2.654 × 10-4 0.8018 - - - 7.547 × 103 1.361 × 10-3 3 7.632 4.227 × 10-4 0.7660 - - - 8.231 × 103 1.571 × 10-3 6 6.006 3.167 × 10-4 0.5814 7.758 1.212 × 10-4 0.8843 2.429 × 104 - 12 5.372 3.184 × 10-4 0.5341 1.404 × 101 2.217 × 10-4 0.8255 2.230 × 104 - 18 5.738 2.241 × 10-4 0.5426 1.543 × 101 2.616 × 10-4 0.7874 2.646 × 104 - 24 5.821 2.265 × 10-4 0.5445 1.780 × 101 2.902 × 10-4 0.7809 2.454 × 104 - 30 5.102 1.622 × 10-4 0.5399 1.957 × 101 4.016 × 10-4 0.7275 2.248 × 104 -