pH值、温度和盐度对B30铜镍合金在海水中成膜的影响

陈翰林, 马力, 黄国胜, 杜敏

Effects of pH Value, Temperature and Salinity on Film Formation of B30 Cu-Ni Alloy in Seawater

CHEN Hanlin, MA Li, HUANG Guosheng, DU Min

表1 B30铜镍合金在不同pH的海水中浸泡不同时间的EIS的拟合数据

Table 1 Fitting results of EIS of B30 copper-nickel alloy after immersion in seawater with different pH

pH t / d Rct / Ω·cm2 nd Rf / Ω·cm2 nf 6.6 1 9514 0.717 2.923 0.947 5 28750 0.781 53.72 0.776 11 52025 0.850 2492 0.748 15 61315 0.802 2613 0.753 19 10630 0.947 1501 0.804 8.4 1 1774 0.476 73.14 0.789 5 32165 0.406 1204 0.802 11 91373 0.911 1341 0.737 15 91055 0.893 1127 0.735 19 27023 0.612 2668 0.742 9.8 1 49130 0.891 161.6 0.869 5 107000 0.980 755.6 0.807 11 62110 0.827 125.3 0.764 15 71490 1.000 154.2 0.760 19 47090 0.997 273.1 0.764