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

68 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

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shape memory alloys
martensite
tensile stress
Shape memory effect
plastic properties
Tensile stress
Martensite
Plasticity
austenite
Austenite
Atomic force microscopy
atomic force microscopy

Keywords

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

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)
  • Metals and Alloys

Cite this

Mechanism of reversible transformation-induced plasticity of Fe-Mn-Si shape memory alloys. / Sawaguchi, Takahiro; Bujoreanu, Leandru Gheorghe; Kikuchi, Takehiko; Ogawa, Kazuyuki; Koyama, Motomichi; Murakami, Masato.

In: Scripta Materialia, Vol. 59, No. 8, 10.2008, p. 826-829.

Research output: Contribution to journalArticle

Sawaguchi, Takahiro ; Bujoreanu, Leandru Gheorghe ; Kikuchi, Takehiko ; Ogawa, Kazuyuki ; Koyama, Motomichi ; Murakami, Masato. / Mechanism of reversible transformation-induced plasticity of Fe-Mn-Si shape memory alloys. In: Scripta Materialia. 2008 ; Vol. 59, No. 8. pp. 826-829.
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