Table 2.
Summary of electrochemical deposition treatment (EDT) processes used in test phases 1, 2 and 3.
| Test Phase | Specimen No. | Pre-Treatment | Deposition | Post-Treatment | Deposition | Post-Treatment | Baking | ||
|---|---|---|---|---|---|---|---|---|---|
| Electrolyte | Current | Duration | |||||||
| ① | ② | ③ | ④ | ⑤ | ⑥ | ||||
| TP1 | TP1-1 | X | X | X | X | X | X | X | 60 °C 5 h |
| TP1-2 | 0.3 M MgCl2 | −2 μA/cm2 | 24 h | X | X | X | |||
| TP1-3 | 1.0 M MgCl2 | ||||||||
| TP1-4 | 3.0 M MgCl2 | ||||||||
| TP2 | TP2-1 | X | X | X | X | X | X | X | |
| TP2-2 | X | X | X | ||||||
| TP2-3 | 2.0 M MgCl2 | −2 μA/cm2 | 48 h | ||||||
| TP2-4 | 168 h | ||||||||
| TP3 | TP3-1 | X | 2.0 M MgCl2 | −2 μA/cm2 | 240 h (10 days) |
NaOH (pH 13) | X | X | |
| TP3-2 | O | X | |||||||
| TP3-3 | O | O | |||||||
| TP3-4 | NaOH (pH 13) | X | X | ||||||