| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Solid Phase Processing Symposium
|
| Presentation Title |
Dynamic Recrystallization Model Under Large Deformation During Solid Phase Processing |
| Author(s) |
Yulan Li, Shenyang Hu, Erin I Barker, Suveen N Mathaudhu |
| On-Site Speaker (Planned) |
Yulan Li |
| Abstract Scope |
Prediction of microstructure evolution during solid phase processing (SPP) is crucial for optimizing the operation parameters to achieve desired material microstructures and properties. The microstructure evolution during SPP refers to the temporal dislocation density and distribution, the nucleation of new grains and/or new phases. In this work, we present a dynamic recrystallization model under large deformation. The focuses are on the evolution of dislocation network structure and the nucleation of recrystallized grains. The fast Fourier transform (FFT)-based crystal plasticity model is employed to handle the large deformation in polycrystals. The associated plastic shear strain rate and resolved shear stress determine dislocation density and distribution which in turn determine the nucleation location and rate of recrystallized grains. Phase field method is used to model the recrystallized gain formation and grain structure evolution. Simulation results under typical stress state during Shear Assisted Processing Extrusion (ShAPE) will demonstrate the model capability. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |