The relationship between isothermal and non-isothermal description of Johnson-Mehl-Avrami-Kolmogorov kinetics

Abstract Various solid state transformations, i.e. the recrystallization of deformed metals or the crystallization of amorphous alloys, are often described using Johnson-Mehl-Avrami-Kolmogorov kinetics. However it is not clear whether the isothermal parameters of this representation can also be determined in less time from non-isothermal measurements. It is the aim of this paper to show that this can indeed be done and why commonly used methods for the analysis of non-isothermal measurements like the Kissinger-plot will give the correct activation energy.

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