Nanoindentation/atomic force microscopy analyses of -martensitic transformation and shape memory effect in Fe-28Mn-6Si-5Cr alloy

K. Sekido, T. Ohmura, T. Sawaguchi, M. Koyama, H. W. Park, K. Tsuzaki

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

Nanoindentation was conducted to investigate the stress-induced -martensitic transformation behavior and the shape memory effect in a Fe-28Mn-6Si-5Cr alloy. The shape memory effect was evaluated from the volume change in an indent mark caused by annealing measured by atomic force microscopy. Using the load-displacement (P-h) data obtained from nanoindentation, the plot of P/h vs. h showed two types of slopes, corresponding to the -martensitic transformation and slip deformation, and exhibited a correlation with the shape recovery ratio.

Original languageEnglish
Pages (from-to)942-945
Number of pages4
JournalScripta Materialia
Volume65
Issue number11
DOIs
Publication statusPublished - 2011 Dec
Externally publishedYes

Keywords

  • Atomic force microscopy
  • High-manganese steel
  • Martensitic phase transformation
  • Nanoindentation
  • 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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