Abstract
Non-isothermal crystallization behavior of (Cu60Zr30Ti10)98Y2bulk metallic glass (BMG) has been investigated by Differential Scanning Calorimeter (DSC). The results show that crystallization in this bulk metallic glass has a three-stage crystalline precipitation process during continuous heating. The glass transition and crystallization behavior have relations to the continuous heating rate. Analyzed by the Kissinger and Ozawa method, apparent activation energies for three crystallization peak temperatures were Ep1<Ep2<Ep3, and this indicates that the first crystalline precipitation progresses more easily. After isothermal annealing at 623K below Tg, the number of crystallization peaks decreases from three to two with time increase, but the apparent activation energies for crystallization are nearly independent on pre-annealing.
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