About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Defects and Interfaces: Modeling and Experiments
|
Presentation Title |
Exploring the Interplay between Disconnections and Grain Boundary Facet Junctions |
Author(s) |
Douglas L. Medlin |
On-Site Speaker (Planned) |
Douglas L. Medlin |
Abstract Scope |
Faceting of grain boundaries is an important manifestation of anisotropy in the dependence of excess interfacial free energy on boundary inclination. It is interesting to consider the interaction of the junctions between adjacent facets and other microstructural elements since this can have a strong influence on the boundary's behavior and properties and on its overall morphological evolution. In this presentation, we discuss electron microscopic observations and atomistic simulations exploring the interplay between facet junctions, dislocations, and interfacial disconnections at metallic grain boundaries. These analyses provide mechanistic insight concerning the factors controlling both the morphological and three-dimensional character of grain boundaries at the nanoscale.
Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC., a wholly owned subsidiary of Honeywell International, Inc., for the US DOE’s NNSA under contract DE-NA-0003525. |
Proceedings Inclusion? |
Planned: |
Keywords |
Computational Materials Science & Engineering, Thin Films and Interfaces, Characterization |