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Diffusional Decomposition and Glass Forming Ability of Solidifying Ternary Liquids

Published online by Cambridge University Press:  26 January 2016

E. Eshed
Affiliation:
Israel Institute of Metals, Techion, 32000 Haifa, Israel
M. Bamberger
Affiliation:
Department of Science and Materials Engineering, Technion, 32000 Haifa, Israel
A. Katsman*
Affiliation:
Department of Science and Materials Engineering, Technion, 32000 Haifa, Israel
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Abstract

An innovative model based on spinodal-like decomposition of supercooled multi-component liquids was developed for prediction of the glass forming ability (GFA) of ternary alloys. The up-hill diffusion in the initially homogeneous freezing ternary liquid was considered as a necessary condition for solidification of crystalline phases. New generalized criteria of spinodal decomposition of ternary alloys for time/space correlated fluctuations were formulated. These criteria take into account both thermodynamic and kinetic properties of the system. The introduced criteria were found to provide adequate GFA evaluation of different compositions in the Mg-based ternary alloys.

Type
Articles
Copyright
Copyright © Materials Research Society 2016 

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References

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