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Title: Modeling work hardening of pearlitic steels by phenomenological and Taylor-type micromechanical models
Authors: Hu, Xiaohua ×
Van Houtte, Paul
Liebeherr, Martin
Walentek, Artur
Seefeldt, Marc
Vandekinderen, Hendrik #
Issue Date: Feb-2006
Publisher: Pergamon-elsevier science ltd
Series Title: Acta Materialia vol:54 issue:4 pages:1029-1040
Abstract: The prediction of the work-hardening behavior of fully lamellar pearlitic steels during cold deformation is attempted by means of phenomenological and Taylor-type micromechanical models. The phenomenological model is based on the Bouaziz model and reformulated with the iso-strain rule of mixture. It is found that the simple power law of interlamellar spacing evolution overestimates the decrease of interlamellar spacing., but this overestimation is compensated by an underestimation due to the dislocation propagation mechanism implied by the phenomenological model and that may be the reason that this model leads to a reasonable prediction of the work hardening. The full constraint Taylor pearlite model calculates yield stress of the ferrite phase. The cementite behavior is also considered in the current paper. A tentative transient law between the dislocation propagation and multiplication mechanisms is proposed and a very good prediction of work hardening is found for both wiredrawing and rolling. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
ISSN: 1359-6454
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Department of Materials Engineering - miscellaneous
Mechanical Metallurgy Section (-)
× corresponding author
# (joint) last author

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