| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Multiscale Model of α/β-phase Coevolution During Thermomechanical Processing of Dual-phase Titanium Alloys |
| Author(s) |
Benjamin A. Begley, Victoria M. Miller |
| On-Site Speaker (Planned) |
Benjamin A. Begley |
| Abstract Scope |
The total morphological and texture evolution of a dual-phase titanium microstructure is controlled by the evolution of both phases during thermomechanical processing. Understanding the coevolution of these phases is key to developing efficient processing strategies for colony and microtexture breakdown. This work uses the PIRATES (Process-scale Industry-Research Automated Texture Evolution Simulation) framework to link DEFORM—a commercial finite element software designed for modeling forging operations—with the viscoplastic self-consistent (VPSC) crystal plasticity model in order to model site-specific texture evolution under local strain fields in the workpiece. Matched sets of physical forging operations and DEFORM simulations are used to validate the model. Additional physics-informed modules add support for non-equilibrium phase transformations, α-phase variant selection, and temperature-dependent plasticity. By probing coevolution from a selection of representative initial textures, the PIRATES framework is used to develop a simple parameter for predicting microtexture severity given the microstructure and processing pathway. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Titanium, ICME, Modeling and Simulation |