About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
In Tribute to Robert Wagoner: A Pioneer in Metal Forming and Constitutive Modeling
|
| Presentation Title |
Characterization of Thermomechanical Microstructure Evolution in Aluminum Alloys Under High-Temperature Deformation |
| Author(s) |
Seo Yeon Jo, Jinheung Park, Reza (Ryan) Rezaei, Colton Ritz, Luis Vega, Myoung-Gyu Lee, Taejoon Park, Farhang Pourboghrat |
| On-Site Speaker (Planned) |
Seo Yeon Jo |
| Abstract Scope |
During hot deformation of bulk aluminum alloys, the mechanical response evolves due to continuous microstructural changes. For the optimization of thermomechanical processing conditions, a clear understanding of the underlying microstructure evolution mechanisms is essential prior to the application of computational models. To overcome the limitations of in-situ analyses, hot compression tests were employed as ex-situ methods. In this study, hot compression tests were conducted at temperatures above 300 ℃ and at varying strain rates of 0.1, 1, and 10 s⁻¹. Electron backscatter diffraction was used for detailed microstructural characterization, in conjunction with flow stress analysis, to investigate the respective roles of dynamic recrystallization (DRX) and dynamic recovery during deformation. Microstructural evaluation techniques, including grain orientation spread, were employed to differentiate between distinct DRX mechanisms. This work facilitates improved constitutive modeling and process design for industrial applications involving hot deformation of aluminum alloys. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Aluminum, Characterization, Other |