| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Structure-Property Relationships of Bulk Metallic Glasses
|
| Presentation Title |
Processing Dependent Elastic Heterogeneities in Bulk Metallic Glasses |
| Author(s) |
Reza Rashidi, Birte Riechers, Robert Maass |
| On-Site Speaker (Planned) |
Birte Riechers |
| Abstract Scope |
Metallic glasses (MGs) are known to be structurally heterogeneous at the nanometer (nm) scale. In addition, elastic property mapping has indicated the presence of at least an order-of-magnitude larger length scales, the origin of which continues to be debated. Our previous work revealed an elastic correlation length of 150-200 nm (Materials & Design 229 (2023) 111929) in a Zr-based alloy and ruled out chemical fluctuations as the origin. Instead, we proposed that cooling constraints during solidification may be underlying the elastic long-range fluctuations. Here we present position-dependent quantifications of elastic correlation lengths for different casting geometries and thermal processing histories, which gives further support for our initial proposition. We discuss our findings in the context of tailed elastic microstructures and its possible relationship to macroscopic properties. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Mechanical Properties, Other |