| About this Abstract |
| Meeting |
TMS Specialty Congress 2025
|
| Symposium
|
The 7th International Congress on 3D Materials Science (3DMS 2025)
|
| Presentation Title |
Microstructural Influences on Crystal Plasticity Model Predictions Using High Energy X-Ray Diffraction Microscopy and TriBeam Tomography |
| Author(s) |
Justine Schulte, Dalton Shadle, James Lamb, McLean Echlin, Kelly Nygren, Matthew Miller, Tresa Pollock, Irene Beyerlein |
| On-Site Speaker (Planned) |
Justine Schulte |
| Abstract Scope |
High energy x-ray diffraction microscopy (HEDM) is a valuable technique to study deformation in polycrystals as it provides 3D microstructure reconstructions and time-resolved micromechanical data. In the literature, this technique has been paired with full field models by providing initial microstructures and fine-scale validation. However, it is known that HEDM cannot consistently resolve small grains and twins, which arises as a consideration when interpreting results and a possible source of discrepancy in validation efforts when paired with microstructure-sensitive models in FCC materials. To quantify how missing features affect predicted values, a SEM-based TriBeam tomography dataset was collected on an IN718 sample that was monitored during a loading experiment using near-field and far-field HEDM. These overlapping reconstructions will be used to quantify differences in the captured grains. Additionally, crystal plasticity finite element (CPFE) simulations will be run with both reconstructions to observe any deviations in predicted values due to microstructural differences. |
| Proceedings Inclusion? |
Undecided |