Mechanism of reversible transformation-induced plasticity of Fe-Mn-Si shape memory alloys

Takahiro Sawaguchi, Leandru Gheorghe Bujoreanu, Takehiko Kikuchi, Kazuyuki Ogawa, Motomichi Koyama, Masato Murakami

Research output: Contribution to journalArticle

74 Citations (Scopus)

Abstract

The mechanism of reversible transformation-induced plasticity of an Fe-30Mn-6Si (mass %) shape memory alloy, under tensile stress and subsequent compression, has been observed by optical and atomic force microscopy. The tensile stress-induced ε (hexagonal close-packed) martensite reverts into γ (face-centered cubic) austenite after compression to zero strain. Further compression to negative strains induces a different ε martensite variant from that of the tensile-stress-induced ε martensite.

Original languageEnglish
Pages (from-to)826-829
Number of pages4
JournalScripta Materialia
Volume59
Issue number8
DOIs
Publication statusPublished - 2008 Oct

Keywords

  • Atomic force microscopy (AFM)
  • Damping
  • Martensitic phase transformation
  • Reversible transformation-induced plasticity
  • Shape memory alloy

ASJC Scopus subject areas

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

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