Influence of different mechanisms of martensite aging on the features of martensitic transformations

Anna Kosogor, Maria Lyange, Mikhail Zadorozhnyy, Hiroyuki Miki, Toshiyuki Takagi, Victor A. L'vov, Vladimir Khovaylo

Research output: Contribution to journalArticle

Abstract

Aging-induced changes in the features of the calorimetric peak accompanying martensitic transformation were considered in the framework of phenomenological theory. Taking into account two different mechanisms of martensite aging, it was demonstrated that the domination of the internal axial stress contribution narrows the calorimetric peak and elevates its magnitude, while the prevalence of the internal pressure contribution broadens the calorimetric peak and diminishes its magnitude. The developed theoretical approach was applied to modeling of experimentally measured calorimetric peaks of Ni-Mn-Ga alloys.

Original languageEnglish
Pages (from-to)2758-2761
Number of pages4
JournalPhysica Status Solidi (B) Basic Research
Volume252
Issue number12
DOIs
Publication statusPublished - 2015 Dec 1

Keywords

  • Differential scanning calorimetry
  • Internal stresses
  • Martensite aging
  • Shape memory alloys

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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