Elastic and superelastic properties of NiFeCoGa fibers grown by micro-pulling-down method

K. Oikawa, R. Saito, K. Anzai, H. Ishikawa, Y. Sutou, T. Omori, A. Yoshikawa, V. A. Chernenko, S. Besseghini, A. Gambardella, R. Kainuma, K. Ishida

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Low-frequency elastic modulus, internal friction, tensile stress-strain loops, and thermally-induced strain recovery of single-crystal fibers obtained by pulling-down method from the melts of NiFeGaCo alloys were studied. A minimum of the elastic modulus and the maximum peak of the internal friction were obtained at the martensitic transition temperature. A large super-elastic strain of about 10% was obtained in the fiber of the Ni 49Fe 18Ga 27Co 6 alloy. Thermodynamic estimation by the Clausius-Clapeyron equation was consistent with the experimental results,

Original languageEnglish
Pages (from-to)934-937
Number of pages4
JournalMaterials Transactions
Volume50
Issue number4
DOIs
Publication statusPublished - 2009 Apr

Keywords

  • Magnetic shape memory heusler alloy
  • Martensltic phase transformation
  • Superelasticity

ASJC Scopus subject areas

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

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