Journal
INTERMETALLICS
Volume 18, Issue 11, Pages 2065-2068Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.intermet.2010.06.012
Keywords
Glasses, metallic
Categories
Funding
- HKPU SG
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Currently existing expressions of glass forming ability (GFA) have been formulated based on the characteristic temperatures measured from heating of metallic glasses However, these GFA expressions are not acceptable physically as GFA is defined from cooling of the molten liquid rather than heating of the solid glasses In consideration of the relationship between the cooling and heating processes, we have derived a new GFA criterion. gamma(c)=(3T(x)-2Tg)/T-I(T-x onset crystallization temperature; T-g glass transition temperature, T-I liquidus temperature). This criterion correlates very well to the critical cooling rate and agrees exceptionally well with the physically acceptable boundary condition. (C) 2010 Elsevier Ltd All rights reserved.
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