Research Article
Investigations on the Hot Stamping of AW-7921-T4 Alloy Sheet
Table 3
Condition and precipitate microstructure for AW-7921 sheet for the various tempers, as discerned from the DSC measurements.
| Temper | Precipitate microstructure |
| SHT + WQ: W-temper | Zn and Mg solutes | SHT + WQ + 2-week storage: T4-temper | GP Zone | HF + DQ @ 10 mm/s + two-week storage | GP Zone | 1-SPB | η′ precipitate | 3-SPB | η′ precipitate | T6 | η′ precipitate |
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