The effects of thermomechanical training treatment on the deformation characteristics of Fe-Mn-Si-Al alloys

Motomichi Koyama, Takahiro Sawaguchi, Kazuyuki Ogawa, Takehiko Kikuchi, Masato Murakami

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

We have studied the effects of the thermomechanical training treatment on the deformation mode for Fe-30Mn-(6 - x)Si-xAl (x = 0, 1, 2 and 3 mass%) alloys, which exhibit complicated deformation processes due to coexistence of the stress-induced fcc to hcp martensitic transformation and the mechanical twinning of the fcc matrix in addition to slip deformation. The stress-strain curves at each training cycle were analyzed for the alloys, and the deformation microstructures were observed with atomic force microscopy on a Fe-30Mn-5Si-1Al alloy before and after the training treatment. It was found that the deformation mode shifts from the mechanical twinning to the stress-induced martensitic transformation, as the training proceeds.

Original languageEnglish
Pages (from-to)353-357
Number of pages5
JournalMaterials Science and Engineering A
Volume497
Issue number1-2
DOIs
Publication statusPublished - 2008 Dec 15

Fingerprint

education
mechanical twinning
Twinning
Martensitic transformations
martensitic transformation
Stress-strain curves
Atomic force microscopy
slip
atomic force microscopy
microstructure
Microstructure
cycles
shift
curves
matrices

Keywords

  • Deformation twin
  • Fe-Mn-Si
  • Martensitic transformation
  • Shape memory effect
  • Training
  • Twinning-induced plasticity

ASJC Scopus subject areas

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

Cite this

The effects of thermomechanical training treatment on the deformation characteristics of Fe-Mn-Si-Al alloys. / Koyama, Motomichi; Sawaguchi, Takahiro; Ogawa, Kazuyuki; Kikuchi, Takehiko; Murakami, Masato.

In: Materials Science and Engineering A, Vol. 497, No. 1-2, 15.12.2008, p. 353-357.

Research output: Contribution to journalArticle

Koyama, Motomichi ; Sawaguchi, Takahiro ; Ogawa, Kazuyuki ; Kikuchi, Takehiko ; Murakami, Masato. / The effects of thermomechanical training treatment on the deformation characteristics of Fe-Mn-Si-Al alloys. In: Materials Science and Engineering A. 2008 ; Vol. 497, No. 1-2. pp. 353-357.
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