| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
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| Symposium
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Bridging Scale Gaps in Multiscale Materials Modeling in the Age of Artificial Intelligence
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| Presentation Title |
Mesoscale Investigation of Dislocation-Grain Boundary Interactions in Metals and Alloys |
| Author(s) |
Abigail Hunter |
| On-Site Speaker (Planned) |
Abigail Hunter |
| Abstract Scope |
“Microstructure” refers to the large number of crystal grains and their corresponding boundaries that make up metals and alloys. A material’s ability to accommodate stress induced through mechanical loads is dependent on the ease with which dislocations can move through the microstructure to relieve accumulated stress. Grain boundaries (GBs) are the largest impediment to this motion. GB structure defines whether a dislocation can transmit across a GB, be partially absorbed, or glide along the GB and re-emit. For poor alignment between grains, dislocations can pile-up against GBs, building localized internal stress regions that work harden the material. Understanding and predicting dislocation-GB interactions are key for capturing mechanical response, but they are also incredibly complex due to the vast number of possible GBs and corresponding dislocation interactions. This talk will focus on recent multiscale modeling efforts addressing dislocation-GB interactions, with focus on methods/approaches that can be used to scale information. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Machine Learning, Mechanical Properties |