About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Local Chemical Ordering and Its Impact on Mechanical Behaviors, Radiation Damage, and Corrosion
|
| Presentation Title |
Elastic Microstructure, Local Ordering, and Strain Fluctuations in Metallic Glasses |
| Author(s) |
Reza Rashidi, Birte Riechers, Robert Maass |
| On-Site Speaker (Planned) |
Robert Maass |
| Abstract Scope |
Metallic glasses are chemically complex and disordered solids with exceptional properties. However, they lack well-defined and exploitable structure-property relationships, which offsets them strongly from their crystalline counterparts. The past two decades have revealed spatially fluctuating property fluctuations from the nanometer to the micronscale, nurturing the idea of a hierarchical elastic microstructure (Advanced Functional Materials 28 (2018) 1800388). In this talk, we focus on the possible underlying structural origins of this elastic microstructure. Specifically, we exploit 4DSTEM methods to bridge between surface sensitive mechanical mapping methods (Materials & Design 229 (2023) 111929, Scripta Materialia 255 (2025) 116380) and structural information gained from diffraction mapping. Atomistic simulations are used to obtain a better qualitative understanding of structural motifs and their diffraction contribution. We discuss the findings in terms of statistical signatures of local symmetry clustering, atomic-scale strain fluctuations, and the evolution of short- and medium-range order. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Mechanical Properties, |