Abstract
The variation of onset of crystallization temperature (Tx) and peak crystallization temperature (Tp) with heating rate (q) is studied. Tx and Tp vary in a power law behavior with heating rate (q) for Cu60 Zr20Ti20 metallic glass and these parameters show a linear variation for Cu60Zr40 metallic glass. The power law variation is expressed as Tx (or Tp) = T0 [q]y; where, q is the normalized heating rate, T0 is the Tx (or Tp) at a heating rate of 10Cmin-1. Further, the calculated values of Tx (or Tp) are found to be in good agreement with the experimental results. Hence, the power law relation is found to be an appropriate theoretical expression for the variation of crystallization temperature (Tx or Tp) with heating rate (q) for Cu60 Zr20Ti20 metallic glass. In addition to heating rate, the composition of a metallic glass also affects its crystallization temperature. It is observed that the characteristics temperatures shift towards higher values with increase in number of components.
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