| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
Progressive Dynamic Recrystallization (DRX) and Texture Behaviors of Al-7Mg Alloy During Hot Torsion |
| Author(s) |
Ji-Woon Lee, Kwang Tae Son, Jongun Moon, Gian Song, Jin-Kyu Lee, Soon-Jik Hong |
| On-Site Speaker (Planned) |
Ji-Woon Lee |
| Abstract Scope |
Hot torsion tests were performed on the Al–7Mg alloy at the temperature ranging from 300 to 500°C and strain rates between 0.05 and 5 s–1 to explore the progressive dynamic recrystallization (DRX) and texture behaviors. The DRX behavior of the alloy manifested two distinct stages: Stage 1 at strain of ≤2 and Stage 2 at strains of ≥2. In Stage 1, there was a slight increase in the DRXed grain fraction (XDRX) with predominance of discontinuous DRX (DDRX), followed by a modest change in XDRX until the transition to Stage 2. Stage 2 was marked by an accelerated rate of DRX, culminating in a substantial final XDRX of ~0.9. Electron backscattered diffraction (EBSD) analysis on a sample in Stage 2 revealed that continuous DRX (CDRX) predominantly occurred within the (12 ̅1) [001] grains, whereas the (111) [110] grains underwent a geometric DRX (GDRX) evolution without a noticeable sub-grain structure. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Mechanical Properties, Shaping and Forming |