| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Grain Boundaries and Interfaces: Metastability, Disorder, and Non-Equilibrium Behavior
|
| Presentation Title |
Reconciling the Variability of Grain Boundary Migration Behaviors Using a Classical Approach |
| Author(s) |
Eric R. Homer, Darcey Britton, Oliver K Johnson, Gregory B Thompson |
| On-Site Speaker (Planned) |
Eric R. Homer |
| Abstract Scope |
Recent examinations of grain boundary mobility have demonstrated some very interesting phenomena, where, in addition to the expected thermally activated behavior, grain boundaries can exhibit non-Arrhenius temperature dependence as well as coarsening at cryogenic temperatures. We demonstrate that all these diverse behaviors are consistent with classical derivations of grain boundary migration and note the factors that control the change in observed migration behaviors. The case study to reinforce these observations is focused on the grain boundary migration of a single grain boundary type across a variety of metastable grain boundary structures. In addition to describing the classical model, we examine how the metastable structures might contribute to an expected migration behavior. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Computational Materials Science & Engineering, Modeling and Simulation, |