Table 2 Tafel parameters of aluminum and anodized aluminum samples
Sample | βa (V/dec) | βc (V/dec) | Ecorr. (V) | icorr. (μA/cm2) | Corrosion rate (mm/year) | Polarization resistance (KΩ) |
|---|---|---|---|---|---|---|
Al substrate | 125.67 | 106.99 | − 800.61 | 7.8914 | 0.08603 | 3.1803 |
Anodized Al | 24.8550 | 219.33 | − 723.64 | 2.008 | 0.02189 | 4.8284 |