Prediction of composition dependency of glass forming ability of Mg-Cu-Y alloys by thermodynamic approach

Abstract

A simple thermodynamic calculation scheme has been proposed to predict the composition dependency of glass forming ability (GFA) in the Mg-Cu-Y ternary alloys. Driving forces of formation for crystalline phases under undercooled liquid states are calculated to define the composition with a local minimum of the driving forces as the one with the highest GFA. The calculated results are in good agreement with the experimental results. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.