| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Microstructural Evolution and Material Properties Due to Manufacturing Processes: A Symposium in Honor of Anthony Rollett
|
| Presentation Title |
Integration of Phase-Field Model and Fast Fourier Transform-Based Crystal Plasticity With Geometrically Necessary Dislocations to Simulate Microstructure Evolution During the Manufacturing of Gradient Grained Metals |
| Author(s) |
Lei Chen |
| On-Site Speaker (Planned) |
Lei Chen |
| Abstract Scope |
This study presents a computational framework merging fast Fourier transform (FFT)-based crystal plasticity (CP) with phase-field modeling (PFM) to simulate the deformation, recrystallization, and microstructural evolution during the manufacturing of gradient grained metals. Building upon previous work, this extension incorporates geometrically necessary dislocations (GND) into the CP-FFT framework, enabling efficient predictions of statistically stored dislocation (SSD) and GND densities in such materials. Comparative analysis with finite element method (FEM)-based CP (CP-FEM) is performed to validate the developed model. Numerical experiments explore the influence of strain rate, and grain structure on GND density and stress-strain behavior. The integration of GND-involved CP-FFT with phase-field method facilitates the simulation of microstructure evolution of gradient grained metals. Investigations into GND, SSD, and GND/SSD-driven recrystallization kinetics, compared with classical theories, showcase the framework's capabilities in understanding the intricate relationship between plastic deformation and microstructural evolution during the processing of gradient grained metals. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Computational Materials Science & Engineering, Process Technology, Modeling and Simulation |