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arXiv · 1204.4002

Fe-rich border of miscibility gap and activation energy of phase decomposition in a Fe-Cr alloy

S. M. Dubiel·J. Zukrowski
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Abstract

Concentration of Cr in the Fe-rich alpha-phase, x, resulted from a phase decomposition caused by an isothermal annealing at T = 415 and 450 C of a non-irradiated (NR) Fe-Cr14 EFDA sample and that of a He-ions irradiated (IR) one annealed at 415 C was determined with M\"ossbauer spectroscopy. The x-value in the latter was by ~3 at% higher than the one in the NR-counterpart. The activation energy for the phase decomposition in the NR-sample was 122 kJ/mol. In the IR-sample its value was by 12 kJ/mol lower. Avrami exponents for the NR-samples were close to 0.5, and that for the IR-sample had a value of about 1.

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S. M. Dubiel, J. Zukrowski. 2012-04-18. Fe-rich border of miscibility gap and activation energy of phase decomposition in a Fe-Cr alloy. https://doi.org/10.1016/j.matchemphys.2013.05.o23

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