Strategy for pinpointing the best glass-forming alloys

Ma, D.; Tan, H.; Wang, D.; Li, Y.; Ma, E.
May 2005
Applied Physics Letters;5/9/2005, Vol. 86 Issue 19, p191906
Academic Journal
We present a model for the glass forming ability (GFA), based on phase selection of the glass over all the competing crystalline phases. Our analysis indicates that the best glass-forming zone can be either symmetric, or asymmetric, about the eutectic composition. Based on the model predictions we outline a microstructure-based strategy to pinpoint the off-eutectic composition with the optimum GFA. The practical implementation and significance of the strategy is demonstrated by discovering bulk metallic glasses in Zr–Cu and Zr–Cu–Al systems.


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