Estimation of glass forming ability of amorphous alloys based on the thermal analysis data during cooling

Abstract

Based on the analytic approach, a new parameter ΔTm (reduced difference of nucleation temperatures) for estimating the glass forming ability (GFA) has been suggested with simple DTA data at two different cooling rates. The new parameter described GFA of amorphous alloys very well. Besides, an equation for estimating the critical cooling rate has also been suggested using the new parameter for GFA. The results of prediction model have been in good agreement with the previous experimental results. © 2007 The Japan Institute of Metals.