Bulk metallic glasses (BMGs) are of great interest due to their potential applications as structural or functional materials . In these years, many studies done in this domain mainly focused on the glass forming ability, mechanical property, thermodynamic and oxidative behavior as well as impurity diffusion. However, the effect of ion implantation, which has close relations to mechanical property and impurity diffusion, has not been investigated widely. The applications of BMGs are to some extent confined by the metastable state, which is linked to the nucleation kinetics of the crystalline phases formed during heat treatment. Differential scanning calorimeter (DSC) is a convenient and widely used tool for studying the kinetics of phase transformations, while the kinetics datum could be obtained in either the isothermal or continuous heating mode.
The non-isothermal crystallization behaviors of a Zr-based BMG implanted by Cons were studied via a differential scanning calorimeter by Kissinger and Ozawa methods. With the heating rate increases, all the thermodynamic parameters moved to higher temperatures. The activation energy for crystallization calculated by Kissinger and Ozawa method was 291.27 kJ and 288.53 kJ/Mol, respectively. The crystallization mechanisms are typical nucleation and growths of crystalline grains, among which the latter dominated the total crystallization processes.
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