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

研究成果査読

40 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)353-357
ページ数5
ジャーナルMaterials Science and Engineering A
497
1-2
DOI
出版ステータスPublished - 2008 12 15

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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