Abstract Scope |
Many material properties of bulk metallic glasses (BMGs) have been investigated (e.g. strength, toughness, etc.). However, limits of the glass forming ability have left the fragile regime of BMGs predominantly unexplored. Utilizing a high Angell fragility platinum-based glass with m tunable from 60 to 90+, various trends and properties are observed. In this study, high fragility influences configurational enthalpies of the glass transition, in-situ shear and ex-situ shear, Bulk, and Young’s moduli, and internal stress profiles. These results reveal first-order behavior in the glass transition in the high fragility limit. The elastic moduli support this interpretation and the internal stress profiles provide insight into the underlying mechanism. Further, these results add to and improve the understanding of BMGs and their material properties (e.g. strength, toughness, etc.). |