A new method is developed for the determination of activation energies for nucleation (E_n) and for growth of nuclei (E_g) during crystallization of amorphous alloys. This method is based on the crystallization kinetics theory and the experimental results of the variation relationships of local activation energy E_c(x) and local Avrami exponent n(x) with the crystallized volume fraction (x) during crystallization of an amorphous Ni-P alloy. Calculation results of E_n and E_g in the case of crystallization of the amorphous Ni-P alloy by this method show that this method is not only simple in the experimental procedures, but also accurate in the quantitative results.
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