Research Article
Deposition of Cerium-Based Conversion Coatings on Aluminum Alloy 380
Table 2
Electrochemical parameters derived from potentiodynamic polarization measurements and impedance spectra.
| | Immersion time (min) | Corrosion parameters | | (kΩ ·cm2) | (μA/cm2) | (mVSCE) | | 25°C | 100°C | 25°C | 100°C | 25°C | 100°C |
| |
2
|
32
|
36
|
0.82
|
0.73
|
−540
|
−480
| |
5
|
16
|
49
|
1.60
|
0.54
|
−550
|
−480
| |
8
|
10
|
76
|
2.70
|
0.34
|
−510
|
−540
|
|
|
