Differential Scanning Calorimetry of the α/γ Transformation in Fe–Co Alloys under a Magnetic Field

Wataru Maruno; Yasuhiro Morizono; Sadahiro Tsurekawa

doi:10.2320/matertrans.M2013174

Wataru Maruno, Yasuhiro Morizono, Sadahiro Tsurekawa

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Keywords: phase transformation, magnetic field, latent heat, entropy of phase transformation, differential scanning calorimetry (DSC), iron cobalt alloy

JOURNAL FREE ACCESS

2013 Volume 54 Issue 9 Pages 1823-1828

DOI https://doi.org/10.2320/matertrans.M2013174

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Abstract

This study investigates how a magnetic field affects the α/γ transformation in Fe–Co alloys, particularly its entropy of transformation. Pure Fe, Fe–9.5 at% Co alloy and Fe–19.2 at% Co alloy were analyzed by differential scanning calorimetry in a magnetic field. Both the latent heat and the α/γ transformation entropy for pure Fe and Fe–Co alloys decreased in a magnetic field. These reductions were more pronounced as the Co concentration increased and as the magnetic field strength increased.

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