Influence of Fe and Co on phase transitions in Ni-Mn-Ga alloys

Vladimir V. Khovailo; Toshihiko Abe; Viktor V. Koledov; Minoru Matsumoto; Hirokazu Nakamura; Ryunosuke Note; Makoto Ohtsuka; Vladimir G. Shavrov; Toshiyuki Takagi

doi:10.2320/matertrans.44.2509

Influence of Fe and Co on phase transitions in Ni-Mn-Ga alloys

Vladimir V. Khovailo, Toshihiko Abe, Viktor V. Koledov, Minoru Matsumoto, Hirokazu Nakamura, Ryunosuke Note, Makoto Ohtsuka, Vladimir G. Shavrov, Toshiyuki Takagi

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

36 Citations (Scopus)

Abstract

Differential scanning calorimetry (DSC) and magnetic measurements were performed to study the influence of ferromagnetic 3-d transition elements Fe and Co on structural and magnetic properties of ferromagnetic shape memory alloys Ni₂MnGa. Addition of Fe or Co on the Ni sites decreases the temperature of martensitic phase transition T_m, whereas addition of Co on the Mn sites results in a considerable increase of T_m. Magnetic measurement revealed that Curie temperature T_C increases upon substitution of Fe or Co for Ni. This observation is of importance for design of high temperature ferromagnetic shape memory alloys.

Original language	English
Pages (from-to)	2509-2512
Number of pages	4
Journal	Materials Transactions
Volume	44
Issue number	12
DOIs	https://doi.org/10.2320/matertrans.44.2509
Publication status	Published - 2003 Dec

Keywords

Curie temperature
Ferromagnetic shape memory alloys
Martensitic transition
Quaternary Heusler alloys

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.2320/matertrans.44.2509

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title = "Influence of Fe and Co on phase transitions in Ni-Mn-Ga alloys",

abstract = "Differential scanning calorimetry (DSC) and magnetic measurements were performed to study the influence of ferromagnetic 3-d transition elements Fe and Co on structural and magnetic properties of ferromagnetic shape memory alloys Ni2MnGa. Addition of Fe or Co on the Ni sites decreases the temperature of martensitic phase transition Tm, whereas addition of Co on the Mn sites results in a considerable increase of Tm. Magnetic measurement revealed that Curie temperature TC increases upon substitution of Fe or Co for Ni. This observation is of importance for design of high temperature ferromagnetic shape memory alloys.",

keywords = "Curie temperature, Ferromagnetic shape memory alloys, Martensitic transition, Quaternary Heusler alloys",

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TY - JOUR

T1 - Influence of Fe and Co on phase transitions in Ni-Mn-Ga alloys

AU - Khovailo, Vladimir V.

AU - Abe, Toshihiko

AU - Koledov, Viktor V.

AU - Matsumoto, Minoru

AU - Nakamura, Hirokazu

AU - Note, Ryunosuke

AU - Ohtsuka, Makoto

AU - Shavrov, Vladimir G.

AU - Takagi, Toshiyuki

PY - 2003/12

Y1 - 2003/12

N2 - Differential scanning calorimetry (DSC) and magnetic measurements were performed to study the influence of ferromagnetic 3-d transition elements Fe and Co on structural and magnetic properties of ferromagnetic shape memory alloys Ni2MnGa. Addition of Fe or Co on the Ni sites decreases the temperature of martensitic phase transition Tm, whereas addition of Co on the Mn sites results in a considerable increase of Tm. Magnetic measurement revealed that Curie temperature TC increases upon substitution of Fe or Co for Ni. This observation is of importance for design of high temperature ferromagnetic shape memory alloys.

AB - Differential scanning calorimetry (DSC) and magnetic measurements were performed to study the influence of ferromagnetic 3-d transition elements Fe and Co on structural and magnetic properties of ferromagnetic shape memory alloys Ni2MnGa. Addition of Fe or Co on the Ni sites decreases the temperature of martensitic phase transition Tm, whereas addition of Co on the Mn sites results in a considerable increase of Tm. Magnetic measurement revealed that Curie temperature TC increases upon substitution of Fe or Co for Ni. This observation is of importance for design of high temperature ferromagnetic shape memory alloys.

KW - Curie temperature

KW - Ferromagnetic shape memory alloys

KW - Martensitic transition

KW - Quaternary Heusler alloys

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Influence of Fe and Co on phase transitions in Ni-Mn-Ga alloys

Abstract

Keywords

ASJC Scopus subject areas

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