Table 2 EIS fitting parameters for CuNi and Ti metals exposed to natural seawater for 2, 4, 8, 12, and 16 weeks
Metal | Sample (Week) | Rs (Ω cm2) | Yf (10−4 Ω−1cm−2 sn) | nf | Rf (102 Ω cm2) | Ydl (10−4 Ω−1 cm−2 sn) | ndl | Rct (kΩ cm2) | ⅀ X2 (x 10−2) |
|---|---|---|---|---|---|---|---|---|---|
CuNi | 2 | 1.1 | 0.07 | 0.61 | 0.08 | 1.7 | 0.68 | 3.9 | 0.26 |
4 | 1.7 | 0.02 | 0.65 | 3.2 | 0.1 | 0.18 | 16.3 | 0.02 | |
8 | 1.1 | 32.1 | 0.75 | 29.5 | 0.5 | 0.73 | 19.9 | 0.01 | |
12 | 8.1 | 41.9 | 0.79 | 18.5 | 0.3 | 0.66 | 54.8 | 0.16 | |
16 | 1.5 | 0.48 | 0.64 | 2.4 | 0.2 | 0.79 | 18.5 | 0.34 | |
Ti | 2 | 16.4 | 18.3 | 0.85 | 1.2 | 2.7 | 0.95 | 1711.4 | 4.27 |
4 | 17.9 | 11.3 | 0.78 | 164.3 | 2.6 | 0.98 | 1187.2 | 0.85 | |
8 | 9.2 | 21.3 | 0.85 | 56.6 | 2.1 | 0.97 | 1721.9 | 0.05 | |
12 | 10.5 | 20.1 | 0.87 | 65.8 | 2.0 | 0.96 | 2041.7 | 1.52 | |
16 | 10.1 | 16.7 | 0.87 | 90.8 | 1.9 | 0.95 | 2103.5 | 0.03 |
