Nucleation mechanism of the σ-to-α phase transition in Fe1-xCrx
In this paper we report on the kinetics of the
σ-to-
α phase transition in the system Fe-Cr. The investigations were done by Mößbauer spectroscopy and interpreted in terms of the Johnson-Mehl-Avrami-Kolmogorov-theory. Apart from the time constant, also the Avrami exponent
n varies systematically with temperature, allowing us to draw conclusions on changes in the transformation mechanism (mainly due to nucleation) as one approaches the critical temperature.
It has been
published in
Physical Review B, volume
82, 100101. It is freely accessible
here, note that the copyright is held by the American Physical Society.
