Paper Title:
Constitutive Modeling of TWIP Steel in Uni-Axial Tension
  Abstract

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.

  Info
Periodical
Materials Science Forum (Volumes 654-656)
Main Theme
Edited by
Jian-Feng Nie and Allan Morton
Pages
270-273
DOI
10.4028/www.scientific.net/MSF.654-656.270
Citation
J. K. Kim, Y. Estrin, H. Beladi, S. K. Kim, K. G. Chin, B. C. De Cooman, "Constitutive Modeling of TWIP Steel in Uni-Axial Tension", Materials Science Forum, Vols. 654-656, pp. 270-273, 2010
Online since
June 2010
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Price
$35.00
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