Constitutive modeling of TWIP steel in uni-axial tension

Kim, Jinkyung, Estrin, Yuri, Beladi, Hossein, Kim, Sungkyu, Chin, Kwang-geun and De Cooman, B. C. 2010, Constitutive modeling of TWIP steel in uni-axial tension, Materials science forum, vol. 654-656, pp. 270-273.

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Title Constitutive modeling of TWIP steel in uni-axial tension
Author(s) Kim, Jinkyung
Estrin, Yuri
Beladi, Hossein
Kim, Sungkyu
Chin, Kwang-geun
De Cooman, B. C.
Journal name Materials science forum
Volume number 654-656
Start page 270
End page 273
Total pages 4
Publisher Trans Tech Publications
Place of publication Stafa-Zurich, Switzerland
Publication date 2010
ISSN 0255-5476
Keyword(s) TWIP
constitutive modeling
dynamic strain aging
twinning
Summary High Mn steels demonstrate an exceptional combination of high strength and ductility due to their high work hardening rate during deformation. The microstructure evolution and work hardening behavior of Fe18Mn0.6C1.5Al TWIP steel in uni-axial tension were examined. The purpose of this study was to determine the contribution of all the relevant deformation mechanism : slip, twinning and dynamic strain aging. Constitutive modeling was carried out based on the Kubin-Estrin model, in which the densities of mobile and forest dislocations are coupled in order to account for the continuous immobilization of mobile dislocations during straining. These coupled dislocation densities were also used for simulating the contribution of dynamic strain aging on the flow stress. The model was modified to include the effect of twinning.
Language eng
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 861206 Structural Metal Products
HERDC Research category C1 Refereed article in a scholarly journal
HERDC collection year 2010
Copyright notice ©2010, Trans Tech Publications
Persistent URL http://hdl.handle.net/10536/DRO/DU:30034366

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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