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Thermally activated crystallization of two FeNiPSi alloys

The crytsallization kinetics of two alloys in the Fe-Ni-P-Si quaternary system have been investigated, with both isothermal and continuous heating experiments, by means of differential scanning calorimetry. Both alloys present two separated crystallization processes. The Johnson-Mehl-Avrami-Erofeev equation with a rate constant following the Arrhenius behavior gives the best fit of the experimental data. In all processes the value of its JMAE kinetic exponent is not constant. In the nearly stages, n changes steeply revealing the transient nucleation effect to reach values corresponding to a three-dimensional volume growth controlled by diffusion in the central part (0.3

The work has been financed by MICYT grant MAT2000-0388 and Generalitat de Catalunya grant 1999SGR-0036

Elsevier

Manager: Comisión Interministerial de Ciencia y Tecnología (Espanya)
Author: Suñol Martínez, Joan Josep
Clavaguera-Mora, M-T.
Clavaguera, N.
Abstract: The crytsallization kinetics of two alloys in the Fe-Ni-P-Si quaternary system have been investigated, with both isothermal and continuous heating experiments, by means of differential scanning calorimetry. Both alloys present two separated crystallization processes. The Johnson-Mehl-Avrami-Erofeev equation with a rate constant following the Arrhenius behavior gives the best fit of the experimental data. In all processes the value of its JMAE kinetic exponent is not constant. In the nearly stages, n changes steeply revealing the transient nucleation effect to reach values corresponding to a three-dimensional volume growth controlled by diffusion in the central part (0.3 The work has been financed by MICYT grant MAT2000-0388 and Generalitat de Catalunya grant 1999SGR-0036
Document access: http://hdl.handle.net/2072/298106
Language: eng
Publisher: Elsevier
Rights: Tots els drets reservats
Subject: Cristal·lització
Crystallization
Aliatges
Alloys
Aliatges -- Propietats tèrmiques
Alloys -- Thermal properties
Title: Thermally activated crystallization of two FeNiPSi alloys
Type: info:eu-repo/semantics/article
Repository: Recercat

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