About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Theory and Design of Metallic Glasses
|
| Presentation Title |
Role of Solute-Rich Clusters in Influencing the Mechanical Properties of Zr-Based Bulk Metallic Glasses |
| Author(s) |
Jamie J. Kruzic, Keita Nomoto, Huma Bilal, Bosong Li, Christoph Gammer, Jürgen Eckert, Bernd Gludovatz, Simon Ringer |
| On-Site Speaker (Planned) |
Jamie J. Kruzic |
| Abstract Scope |
While binary Zr-Cu metallic glasses are often quite brittle, Zr-based bulk metallic glasses (BMGs) with 4+ elements can be relatively ductile and tough, suggesting that solute atoms play a strong role in providing favorable mechanical properties. In this study, we develop a novel atom probe tomography cluster analysis approach to identify and visualize three-dimensional nanoscale solute-rich clusters in two different Zr-based BMGs to quantify how their size, composition, spatial distribution, and volume fraction relate to mechanical properties. Hardness variations in BMGs are found to be driven by the volume fraction and distribution of solute-rich clusters and a model for ductile phase softening suggests BMG deformation mechanisms are strongly influenced by the solute-rich clusters. The possible relationship of solute rich clusters with topologically ordered short and medium range ordered clusters is discussed and this general methodology is thought to be applicable to a wide range of multicomponent amorphous materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Characterization, |