| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Multiscale Model for Site-Specific Texture Evolution During Thermomechanical Processing of α+β Ti Alloys |
| Author(s) |
Benjamin A. Begley, Megan Hurley, Victoria M. Miller |
| On-Site Speaker (Planned) |
Benjamin A. Begley |
| Abstract Scope |
In α+β Ti alloys, local crystallographic texture—e.g. a colony microstructure or a microtextured region—can dominate deformation and failure mechanisms. Many promising strategies for efficient breakdown of local texture require fast and accurate prediction of site-specific texture evolution during processing. This work reports further improvements to the PIRATES (Process-scale Industry-Research Automated Texture Evolution Simulation) framework, which links DEFORM—the commercial finite element software for modeling forging operations—with the viscoplastic self-consistent (VPSC) mean-field crystal plasticity model in order to predict site-specific texture evolution under extremely localized strains during a forging operation. Using realistic multipass rolling schedules and interpass annealing, the PIRATES framework predicts the relative likelihood of colony and microtexture breakdown for uniform sampling of colony and MTR orientations at multiple points in the workpiece. Special care is taken to correlate the predicted plastic rotation to dislocation substructure evolution through analysis of activated slip systems. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
ICME, Titanium, Shaping and Forming |