Shape memory effect in Fe-Mn-Ni-Si-C alloys with low Mn contents

X. H. Min, T. Sawaguchi, K. Ogawa, T. Maruyama, F. X. Yin, Kaneaki Tsuzaki

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

An attempt was made to develop a new Fe-Mn-Si-based shape memory alloy from a Fe-17Mn-6Si-0.3C (mass%) shape memory alloy, which was previously reported to show a superior shape memory effect without any costly training treatment, by lowering its Mn content. The shape memory effect and the phase transformation behavior were investigated for the as-solution treated Fe-(17-2. x)Mn-6Si-0.3C- xNi (x = 0, 1, 2, 3, 4) polycrystalline alloys. The shape recovery strain exceeded 2% in the alloys with x = 0-2, which is sufficient for an industrially applicable shape memory effect; however, it suddenly decreased in the alloys between x = 2 and 3 although the significant shape recovery strain still exceeded 1%. In the alloys with x = 3 and 4, X-ray diffraction analysis and transmission electron microscope observation revealed the existence of α′ martensite, which forms at the intersection of the e{open} martensite plates and suppresses the crystallographic reversibility of the γ austenite to e{open} martensitic transformation.

Original languageEnglish
Pages (from-to)5251-5258
Number of pages8
JournalMaterials Science and Engineering A
Volume528
Issue number15
DOIs
Publication statusPublished - Jun 15 2011

Fingerprint

Shape memory effect
shape memory alloys
martensite
Martensite
recovery
Recovery
Martensitic transformations
martensitic transformation
austenite
Austenite
intersections
X ray diffraction analysis
phase transformations
education
Electron microscopes
electron microscopes
Phase transitions
diffraction
x rays

All Science Journal Classification (ASJC) codes

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

Cite this

Shape memory effect in Fe-Mn-Ni-Si-C alloys with low Mn contents. / Min, X. H.; Sawaguchi, T.; Ogawa, K.; Maruyama, T.; Yin, F. X.; Tsuzaki, Kaneaki.

In: Materials Science and Engineering A, Vol. 528, No. 15, 15.06.2011, p. 5251-5258.

Research output: Contribution to journalArticle

Min, X. H. ; Sawaguchi, T. ; Ogawa, K. ; Maruyama, T. ; Yin, F. X. ; Tsuzaki, Kaneaki. / Shape memory effect in Fe-Mn-Ni-Si-C alloys with low Mn contents. In: Materials Science and Engineering A. 2011 ; Vol. 528, No. 15. pp. 5251-5258.
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