By means of Differential Scanning Calorimetry, we studied the crystallization kinetics of amorphous Cu40Ti60 alloy, and found it following Johnson-Mehl-Avrami equation with n = 2.5. The oxidation of samples has no remarkable effect on the crystallization kinetics. By using Kissinger peak shift method and Arrhenius relationship respectively, the apparent activation energy for crystallization of as-quenched Cu-Ti alloy was obtained. Pre-annealing treatments were introduced to as-quenched Cu-Ti alloys, and crystallization temperature and activation energy for subsequent crystallization were found decreasing as pre-anneal time increasing, the effect was explained by the pre-existing nuclei that resulted from pre-annealing. Then, growth activation energy, Eg, was obtained: Eg = 198KJ/mol. From the relationship of Eg, nucleation activation energy, En, and apparent activation energy, Ec, En = 361.9KJ/mol could be got. In addition, as pre-anneal time increase, the values of Avrami exponent decrease.
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