Effects of Annealing Temperature and Magnetic Field on the ϵ-τ Phase Transformation in Mn-Al Alloys

Ryota Kobayashi; Yoshifuru Mitsui; Rie Y. Umetsu; Kohki Takahashi; Masaki Mizuguchi; Keiichi Koyama

doi:10.1109/LMAG.2016.2617859

Effects of Annealing Temperature and Magnetic Field on the ϵ-τ Phase Transformation in Mn-Al Alloys

Ryota Kobayashi, Yoshifuru Mitsui, Rie Y. Umetsu, Kohki Takahashi, Masaki Mizuguchi, Keiichi Koyama

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Magnetic field effects on the transformation from the hexagonal close-packed ϵ-phase to the ferromagnetic L1₀ τ-phase were evaluated for Mn-Al alloys annealed at 573, 623 and 673 K in magnetic fields up to 15 T. The phase transformation from the ϵ-phase to the τ-phase was enhanced by the magnetic field for the 623 K annealing temperature. These in-field annealing effects are explained by the Zeeman energy of the ferromagnetic τ -phase.

Original language	English
Article number	7590016
Journal	IEEE Magnetics Letters
Volume	8
DOIs	https://doi.org/10.1109/LMAG.2016.2617859
Publication status	Published - 2017

Keywords

high magnetic field
in-field heat treatment
Magnetism in solids
τ-phase Mn-Al

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10.1109/LMAG.2016.2617859

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title = "Effects of Annealing Temperature and Magnetic Field on the ϵ-τ Phase Transformation in Mn-Al Alloys",

abstract = "Magnetic field effects on the transformation from the hexagonal close-packed ϵ-phase to the ferromagnetic L10 τ-phase were evaluated for Mn-Al alloys annealed at 573, 623 and 673 K in magnetic fields up to 15 T. The phase transformation from the ϵ-phase to the τ-phase was enhanced by the magnetic field for the 623 K annealing temperature. These in-field annealing effects are explained by the Zeeman energy of the ferromagnetic τ -phase.",

keywords = "high magnetic field, in-field heat treatment, Magnetism in solids, τ-phase Mn-Al",

author = "Ryota Kobayashi and Yoshifuru Mitsui and Umetsu, {Rie Y.} and Kohki Takahashi and Masaki Mizuguchi and Keiichi Koyama",

note = "Publisher Copyright: {\textcopyright} 2010-2012 IEEE.",

year = "2017",

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language = "English",

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T1 - Effects of Annealing Temperature and Magnetic Field on the ϵ-τ Phase Transformation in Mn-Al Alloys

AU - Kobayashi, Ryota

AU - Mitsui, Yoshifuru

AU - Umetsu, Rie Y.

AU - Takahashi, Kohki

AU - Mizuguchi, Masaki

AU - Koyama, Keiichi

PY - 2017

Y1 - 2017

N2 - Magnetic field effects on the transformation from the hexagonal close-packed ϵ-phase to the ferromagnetic L10 τ-phase were evaluated for Mn-Al alloys annealed at 573, 623 and 673 K in magnetic fields up to 15 T. The phase transformation from the ϵ-phase to the τ-phase was enhanced by the magnetic field for the 623 K annealing temperature. These in-field annealing effects are explained by the Zeeman energy of the ferromagnetic τ -phase.

AB - Magnetic field effects on the transformation from the hexagonal close-packed ϵ-phase to the ferromagnetic L10 τ-phase were evaluated for Mn-Al alloys annealed at 573, 623 and 673 K in magnetic fields up to 15 T. The phase transformation from the ϵ-phase to the τ-phase was enhanced by the magnetic field for the 623 K annealing temperature. These in-field annealing effects are explained by the Zeeman energy of the ferromagnetic τ -phase.

KW - high magnetic field

KW - in-field heat treatment

KW - Magnetism in solids

KW - τ-phase Mn-Al

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Effects of Annealing Temperature and Magnetic Field on the ϵ-τ Phase Transformation in Mn-Al Alloys

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