TY - JOUR
T1 - The effects of thermomechanical training treatment on the deformation characteristics of Fe-Mn-Si-Al alloys
AU - Koyama, Motomichi
AU - Sawaguchi, Takahiro
AU - Ogawa, Kazuyuki
AU - Kikuchi, Takehiko
AU - Murakami, Masato
PY - 2008/12/15
Y1 - 2008/12/15
N2 - 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.
AB - 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.
KW - Deformation twin
KW - Fe-Mn-Si
KW - Martensitic transformation
KW - Shape memory effect
KW - Training
KW - Twinning-induced plasticity
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U2 - 10.1016/j.msea.2008.07.026
DO - 10.1016/j.msea.2008.07.026
M3 - Article
AN - SCOPUS:53349180208
SN - 0921-5093
VL - 497
SP - 353
EP - 357
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
IS - 1-2
ER -