Please use this identifier to cite or link to this item: doi:10.22028/D291-28469
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Title: Indications for a fragile-to-strong transition in the high- and low-temperature viscosity of the Fe43Cr16Mo16C15B10 bulk metallic glass-forming alloy
Author(s): Bochtler, Benedikt
Gross, Oliver
Busch, Ralf
Language: English
Title: Applied Physics Letters
Volume: 111
Issue: 26
Publisher/Platform: American Institute of Physics
Year of Publication: 2017
Publikation type: Journal Article
Abstract: Viscosity of the Fe-based bulk metallic glass-forming liquid Fe43Cr16Mo16C15B10 is measured around the glass transition and in the stable liquid. Low-temperature measurements are conducted using three-point beam bending in a thermomechanical analyzer, and high-temperature data are obtained from the damping behavior of an oscillating droplet which is electromagnetically levitated in microgravity on a reduced-gravity aircraft. The alloy displays an intermediately strong liquid behavior (D* = 15.1) at low temperatures and a fragile behavior (D* = 7.9) at high temperatures. Hence, the temperature dependence of viscosity changes drastically between the high- and the low-temperature regime, which suggests the existence of a fragile-to-strong liquid-liquid transition in the supercooled liquid. Furthermore, viscosity and fragility data are discussed with respect to the glass-forming ability of the alloy.
DOI of the first publication: 10.1063/1.5013108
URL of the first publication:
Link to this record: hdl:20.500.11880/27674
ISSN: 0003-6951
Date of registration: 6-Sep-2019
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Materialwissenschaft und Werkstofftechnik
Professorship: NT - Prof. Dr. Ralf Busch
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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