Kinetic arrest of martensitic transformation in Ni33.0Co 13.4Mn39.7Ga13.9 metamagnetic shape memory alloy

Xiao Xu, Wataru Ito, Rie Y. Umetsu, Keiichi Koyama, Ryosuke Kainuma, Kiyohito Ishida

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

Martensitic and magnetic properties of Ni33.0Co 13.4Mn39.7Ga13.9 metamagnetic shape memory alloy were investigated. The kinetic arrest phenomenon was observed at about 120 K by thermomagnetization measurements, and magnetic field-induced transformation (MFTT) was also detected at various temperatures ranging from 4.2 to 300 K. By evaluation of the equilibrium magnetic fields and temperatures based on the transformation fields and temperatures, it was confirmed that the transformation entropy change below 120 K becomes almost zero, which results in the kinetic arrest phenomenon.

Original languageEnglish
Pages (from-to)469-471
Number of pages3
JournalMaterials Transactions
Volume51
Issue number3
DOIs
Publication statusPublished - 2010 Mar

Keywords

  • Kinetic arrest
  • Metamagnetic shape memory alloy
  • Nicomnga

ASJC Scopus subject areas

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

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