Training of the Ni-Mn-Fe-Ga ferromagnetic shape-memory alloys due cycling in high magnetic field

A. A. Cherechukin, V. V. Khovailo, R. V. Koposov, E. P. Krasnoperov, T. Takagi, J. Tani

Research output: Contribution to journalConference articlepeer-review

34 Citations (Scopus)

Abstract

The temperature and magnetic field dependences of Ni-Mn-Ga polycrystals deformation are investigated. Ingots were prepared by arc-melting in argon atmosphere and further annealing. A training procedure (cycling across the martensitic transition point) for the two-way shape-memory effect was performed with Ni2.16Fe0.04Mn0.80Ga samples. Changes in sample deformations were noticed with changing the magnetic field at constant temperature. The first cycle deformation increment as compared with the initial value (in austenitic state, at zero field) in the course of the martensitic transition was 0.29%, and 0.41% and 0.48% for the second and third cycles, respectively.

Original languageEnglish
Pages (from-to)523-525
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume258-259
DOIs
Publication statusPublished - 2003 Mar
EventSecond Moscow International Symposium on Magnetism (MISM) - Moscow, Russian Federation
Duration: 2001 Jun 202001 Jun 24

Keywords

  • Magnetic field training
  • Ni-Mn-Ga
  • Shape-memory effect
  • Structural phase transition

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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