On the origin of bulk glass forming ability in Cu-Hf, Zr alloys

Abstract

Understanding the formation of bulk metallic glasses (BMG) in metallic systems and finding a reliable criterion for selection of BMG compositions are among the most important issues in condensed matter physics and material science. Using the results of magnetic susceptibility measurements performed on both amorphous and crystallized Cu-Hf alloys (30-70 at% Cu) we find a correlation between the difference in magnetic susceptibilities of corresponding glassy and crystalline alloys and the variation in the glass forming ability (GFA) in these alloys. Since the same correlation can be inferred from data for the properties associated with the electronic structure of Cu-Zr alloys, it seems quite general and may apply to other glassy alloys based on early and late transition metals. This correlation is plausible from the free energy considerations and provides a simple way to select the compositions with high GFA.

11 pages, 3 figures

References in corpus (2)

• Theoretical perspective on the glass transition and amorphous materials
• Facets of glass physics

Cited by in corpus (6)

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• Structure property relationship in $(TiZrNbCu{)}_{1-x}N{i}_x$ metallic glasses
• Change of electronic properties on transition from high-entropy to Ni-rich (TiZrNbCu)(1-x)Ni(x) alloys
• Electronic structure-property relationship in an Al0.5TiZrPdCuNi high-entropy alloy