| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Bulk Metallic Glasses XVIII
|
| Presentation Title |
The Secondary Phase of Bulk Metallic Glass |
| Author(s) |
Sydney L. Corona, Seola Lee, Celia Chari, Jong Hyun Na, Konrad Samwer, William L. Johnson |
| On-Site Speaker (Planned) |
Sydney L. Corona |
| Abstract Scope |
Bulk Metallic Glasses (BMGs) – traditionally understood as a single-phase disordered glass – have been found to display a liquid-liquid (glass-glass) phase transition. This transition leads to growth of secondary phase glassy inclusions upon annealing of as-quenched glasses, with discontinuous properties across the interface. The presented study identifies and characterizes the secondary glass phase in several exemplary metallic glass systems. The inclusions show a 20% hardness increase from the matrix, Energy Dispersive Spectroscopy (EDS) reveals compositional equivalence of the two phases, and dark-field Transmission Electron Microscopy (TEM) characterizes the dual amorphous character. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Mechanical Properties, |