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

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56 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 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.

Original languageEnglish
Pages (from-to)2509-2512
Number of pages4
JournalMaterials Transactions
Volume44
Issue number12
DOIs
Publication statusPublished - 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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    Khovailo, V. V., Abe, T., Koledov, V. V., Matsumoto, M., Nakamura, H., Note, R., Ohtsuka, M., Shavrov, V. G., & Takagi, T. (2003). Influence of Fe and Co on phase transitions in Ni-Mn-Ga alloys. Materials Transactions, 44(12), 2509-2512. https://doi.org/10.2320/matertrans.44.2509