Isothermal nature of martensitic transformation in an Ni 45Co5Mn36.5In13.5 magnetic shape memory alloy

Yong Hee Lee, Mitsuharu Todai, Takahiro Okuyama, Takashi Fukuda, Tomoyuki Kakeshita, Ryosuke Kainuma

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)

Abstract

Recently, kinetic arrest of martensitic transformation was reported in Ni-Co-Mn-In alloys. The transformation shows time dependence, and proceeds even during the heating process. In this study, we comprehensively explain the reason for such phenomena based on a model previously derived by one of the authors: any martensitic transformation is isothermal, showing a C-curve in the time-temperature-transformation diagram. Our experimental results from an Ni45Co5Mn36.5In13.5 alloy confirm the validity of the model.

Original languageEnglish
Pages (from-to)927-930
Number of pages4
JournalScripta Materialia
Volume64
Issue number10
DOIs
Publication statusPublished - 2011 May 1

Keywords

  • Magnetic properties
  • Martensitic phase transformation
  • Phase transformation kinetics
  • Shape memory alloys

ASJC Scopus subject areas

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

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