About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
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Symposium
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Mechanical Response of Materials Investigated through Novel In-situ Experiments and Modeling
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Presentation Title |
Multiscale Scattering Modeling from Deforming Titanium Alloy Polycrystals |
Author(s) |
Darren C. Pagan, Kenneth M. Peterson, Joel V. Bernier, Jacob P.C. Ruff |
On-Site Speaker (Planned) |
Darren C. Pagan |
Abstract Scope |
It is well accepted that distributions of elastic strain (and stress) found in deforming polycrystals have contributions from various features in the microstructure that span length scales and are spatially heterogeneous in 3D. However, to date, efforts to model the effects of these elastic strain distributions on the broadening of X-ray diffraction peaks have primarily focused on a single length scale, likely leading to inaccurate interpretation of experimental results. Here we present a new multiscale scattering framework to capture the effects of both grain interactions and dislocation distributions present. Peak broadening of Ti-6Al-4V during uniaxial deformation, as predicted by the multiscale scattering modeling and crystal plasticity finite element modeling, is compared to experimental peak broadening measured in-situ using new high-dynamic range detection capabilities at the Cornell High Energy Synchrotron Source. |
Proceedings Inclusion? |
Planned: |
Keywords |
Titanium, Mechanical Properties, Characterization |