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Berlin 2024 – wissenschaftliches Programm

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MM: Fachverband Metall- und Materialphysik

MM 55: Liquid and Amorphous Materials II

MM 55.5: Vortrag

Donnerstag, 21. März 2024, 11:15–11:30, C 230

Introduction of sulfur into the (Zr3Ti)(NiCu) system - characterization of a new group of Zr-based BMG containing sulfur — •Bastian Adam, Oliver Kruse, Lucas M. Ruschel, Maximillian Frey, Nico Neuber, and Ralf Busch — Lehrstuhl für metallische Werkstoffe, Saarbrücken,Deutschland

The usage of the element sulfur in Bulk Metallic Glass (BMG) synthesis was recently introduced by Kuball et al. and lead to increased research interest into these new family of BMG [1]. Here we report on the influence of sulfur on the A2B type intermetallic composition (Zr50Ti16.6Ni18.3Cu15) that was characterized by synchrotron diffraction of copper mold cast specimen to determine crystalline phases around the induced primary crystallization change. The addition enables the bulk glass forming ability (GFA) of up to 6 mm 2 at % to 3 at% sulfur. The devitrification behavior and the melting behavior was also studied by heating and melting of the samples in an in-situ synchrotron wide angle scattering experiment (WAXS) experiment utilizing a LINKAM THMS 600 furnace and a high temperature LINKAM TS1500 furnace. For the best glass former of the system the mechanical properties were investigated in terms of three-point beam bending determining the offset yield strength and breaking elongation of the alloy. [1]*A. Kuball, O. Gross, B. Bochtler, and R. Busch, *Sulfur-bearing metallic glasses: A new family of bulk glass-forming alloys,* Scr. Mater., 2018.

Keywords: BMG; sulfur; synchrotron; oxygen

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