| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Structure-Property Relationships of Bulk Metallic Glasses
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| Presentation Title |
From Metallic Liquids to Metallic Glasses: In-situ Insights from Ultrafast Synchrotron X-ray Diffraction |
| Author(s) |
Martin E. Stiehler, Mark R. Jolly, Konstantinos Georgarakis |
| On-Site Speaker (Planned) |
Martin E. Stiehler |
| Abstract Scope |
When metallic liquids vitrify into metallic glasses an increase of viscosity by many orders of magnitude can be observed while the atomic structure shows only minute changes. That different length scales are affected differently adds to the puzzle of glass formation. Further poorly understood phenomena like liquid-liquid crossovers can occur along the pathway of liquid metals to vitrification. Here we discuss structural changes that take place from above the liquidus temperature to well below the glass transition temperature. Data obtained by ultrafast in-situ X-ray diffraction of aerodynamically levitated samples highlights similarities as well as distinct differences of a variety of metallic glass forming liquids. Results in reciprocal as well as real space are analysed. The contribution of local as well as global influences on structure formation during glass formation and their possible influence on glass-forming ability are discussed. Possible universalities spanning different families of metallic liquids are pointed out. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Solidification, Characterization, Phase Transformations |