Prediction of glass-forming ability for metallic systems |
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Authors: | IW Donald HA Davies |
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Institution: | Department of Metallurgy, University of Sheffield, Sheffield, UK |
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Abstract: | The relative glass-forming ability (GFA) of metallic alloys is considered in terms of a parameter , which represents the departure of the alloy liquids temperature, Tliq, from that of the simple rule of mixtures liquids temperature, Tliqmix. For values of a metallic system is likely to form a glass by melt-quenching in useful thicknesses (i.e. > 20 μm) at a cooling rate of 105?107 K s?1. Hence, a rapid assessment of the GFA of novel compositions may in general be obtained simply from a knowledge of the melting points of the pure components and the liquidust emperatures of the alloys. |
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