The authors have recently used a combination of classical elasticity theory and Miedema's model for the heat of formation of alloys to predict the glass-forming ranges of binary transition metal systems. In this paper they extend this approach to study the glass-forming regions in the ternary case. The predictions of the theory are compared with available experimental information for some Co-based ternary alloys, and they relate their treatment to the empirical equation recently proposed by Ueno and Waseda (1985) to describe the minimum solute concentration for glass formation in ternary systems.

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The devitrification of Ni 80 B 20 metallic glass has recently been investigated experimentally by two different groups with contradictory results. Rojo et al. interpret their data as showing that devitrification occurs in two successive processes separated by a state in which pure amorphous Ni is present. By contrast, Riveiro et al. have suggested that the ''intermediate'' state consists of two crystalline phases. Using a semiempirical treatment which combines classical elasticity theory and Miedema's model for the heat of formation of alloys, we have constructed the free energy diagram for Ni-B. We found that it supports Riveiro et al.'s account of the devitrification of Ni 80 B 20 glass rather than Rojo et al.'s.