EN AW-2024 | AlCu4Mg1
| Numeric designation | EN AW-2024 |
|---|---|
| Chemical designation | AlCu4Mg1 |
| Etching | 5 % NaOH, Barker |
Micrographs of an age-hardenable AlCu4Mg1 alloy with two different etchings.
Solution annealing is performed at 500 °C/water quenching. Cold ageing time is 5-8 days; warm ageing at 180-195 °C for 16-24 hours.
Etching:
- 5% NaOH
- Barker, 20V, 120sec, V2A electrode
