Effects of annealing on martensitic and magnetic transitions of Ni-Ga-Fe ferromagnetic shape memory alloys

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Abstract

Effects of annealing on the martensitic and magnetic transitions in Ni 51Ga27Fe22 shape memory alloy were investigated. Curie temperature of the annealed sample decreased with increasing annealing temperature, related to degree of the L21 order, SL21 Both martensitic starting Ms and the austenitic finishing Af temperatures increased with increasing annealing temperature and showed maxima by annealing at 873 K. The Ms and Af seemed to be affected by not only SL21, but also by this magnetic behavior.

Original languageEnglish
Pages (from-to)2043-2044
Number of pages2
JournalJournal of Magnetism and Magnetic Materials
Volume272-276
Issue numberIII
DOIs
Publication statusPublished - 2004 May

Keywords

  • Ferromagnetic
  • Heusler alloy
  • Martensite
  • Order-disorder transition
  • Shape memory alloy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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