| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Characterization Techniques for Quantifying and Modeling Deformation
|
| Presentation Title |
K-10: Imaging Microplasticity Events by Combining High Energy Diffractive Microscopy and Bragg Coherent Diffractive Imaging |
| Author(s) |
Matthew Wilkin, Anthony Rollett |
| On-Site Speaker (Planned) |
Matthew Wilkin |
| Abstract Scope |
Understanding plasticity events at the grain scale is key to the development of mesoscale models. High Energy Diffractive Microscopy (HEDM) has proven effective for determining grain-averaged elastic strain and grain orientation in a sample, but it provides no local strain information. Bragg Coherent Diffractive Imaging (BCDI) has been shown to provide 3D strain fields in individual grains but has largely been applied only to nano-particles, rather than polycrystals. We propose combining these two methods to image the interaction between several grains in a polycrystalline sample. HEDM gives us a 3D map of a microstructure in a sample, providing orientations for each grain. These orientations can be used to locate Bragg peaks for neighboring grains, allowing us to employ BCDI to investigate in 3D the interaction between two neighboring grains during heating or loading and the migration of defects within a particular grain. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |