Table 3 Vickers microhardness evolution during thermomechanical processing.
From: Double twist torsion testing to determine the non recrystallization temperature
Method | Temperature (ËšC) | Hardness (HV) |
|---|---|---|
Double-hit compression | 1150 (above Tnr) | 185 ± 6 |
1100 (near Tnr) | 199 ± 3 | |
1050 (below Tnr) | 201 ± 4 | |
Multi-step hot torsion | 1100 (above Tnr) | 220 ± 3 |
1000 (near Tnr) | 226 ± 6 | |
900 (below Tnr) | 270 ± 7 | |
Double-twist torsion | 1100 (above Tnr) | 211 ± 8 |
1050 (near Tnr) | 209 ± 5 | |
1000 (near Tnr) | 242 ± 6 | |
900 (below Tnr) | 282 ± 8 |
