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Glass Formation and Glass Forming Ability of Alloys Near Eutectic Composition

Published online by Cambridge University Press:  17 March 2011

Y. Li
Y. Li*
Affiliation:
Department of Materials Science, Science Faculty, National University of Singapore, Singapore, 119260
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Abstract

Onset temperature, Tm and offset temperature (liquidus) Tl of melting of a series of bulk glass forming alloys based on La, Mg, and Pd have been measured by studying systematically the melting behaviour of these alloys using DTA or DSC. Bulk metallic glass formation has been found to be most effective at or near their eutectic points and less effective for off-eutectic alloys. Reduced glass transition temperature Trg given by Tg/Tl is found to show a stronger correlation with critical cooling rate or critical section thickness for glass formation than Trg given by Tg/Tm.

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