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Title: Description of microstructural intragranular heterogeneities in a Ti-IF steel using a micromechanical approach

Abstract

A classical problem in metallurgical research is to control the recrystallisation texture which forms during the last annealing process and which determine the mechanical behaviour of the final products. It is now widely admitted that the local deformed state and the substructural heterogeneities within the polycrystal are key parameters to understand the recrystallisation mechanisms.In this work, we present a micromechanical approach based on the use of the affine extension of the self-consistent scheme for viscoplastic behaviours and a phenomenological description of dislocation patterning using a hardening model recently developed for two-stage strain paths. These two ingredients allow to compare the model with experimental crystallographic texture after rolling as well as experimental observations of the intragranular substructure using orientation imaging by Electron Back-Scattered Diffaction. It is shown that the rolling texture is correctly simulated and successful predictions of the orientation of dislocation sheets are obtained.

Authors:
 [1];  [2]; ;  [1];  [3]
  1. Laboratoire des Proprietes Mecaniques et Thermodynamiques des Materiaux, Universite Paris Nord, avenue Jean-Baptiste Clement, 93430 Villetaneuse (France)
  2. (France)
  3. Arcelor Research, Voie romaine - BP30320, 57283 Maizieres-les-Metz and Laboratoire des Proprietes Mecaniques et Thermodynamiques des Materiaux, Universite Paris Nord, avenue Jean-Baptiste Clement, 93430 Villetaneuse (France)
Publication Date:
OSTI Identifier:
21056966
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 907; Journal Issue: 1; Conference: 10. ESAFORM conference on material forming, Zaragoza (Spain), 18-20 Apr 2007; Other Information: DOI: 10.1063/1.2729497; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANNEALING; COMPARATIVE EVALUATIONS; COMPUTERIZED SIMULATION; DISLOCATIONS; ELECTRONS; HARDENING; MICROSTRUCTURE; NUMERICAL ANALYSIS; ORIENTATION; PLASTICITY; POLYCRYSTALS; RECRYSTALLIZATION; ROLLING; STEELS; STRAINS; TEXTURE; VISCOSITY

Citation Formats

Wauthier, A., Arcelor Research, Voie romaine - BP30320, 57283 Maizieres-les-Metz, Brenner, R., Bacroix, B., and Regle, H. Description of microstructural intragranular heterogeneities in a Ti-IF steel using a micromechanical approach. United States: N. p., 2007. Web. doi:10.1063/1.2729497.
Wauthier, A., Arcelor Research, Voie romaine - BP30320, 57283 Maizieres-les-Metz, Brenner, R., Bacroix, B., & Regle, H. Description of microstructural intragranular heterogeneities in a Ti-IF steel using a micromechanical approach. United States. doi:10.1063/1.2729497.
Wauthier, A., Arcelor Research, Voie romaine - BP30320, 57283 Maizieres-les-Metz, Brenner, R., Bacroix, B., and Regle, H. Sat . "Description of microstructural intragranular heterogeneities in a Ti-IF steel using a micromechanical approach". United States. doi:10.1063/1.2729497.
@article{osti_21056966,
title = {Description of microstructural intragranular heterogeneities in a Ti-IF steel using a micromechanical approach},
author = {Wauthier, A. and Arcelor Research, Voie romaine - BP30320, 57283 Maizieres-les-Metz and Brenner, R. and Bacroix, B. and Regle, H.},
abstractNote = {A classical problem in metallurgical research is to control the recrystallisation texture which forms during the last annealing process and which determine the mechanical behaviour of the final products. It is now widely admitted that the local deformed state and the substructural heterogeneities within the polycrystal are key parameters to understand the recrystallisation mechanisms.In this work, we present a micromechanical approach based on the use of the affine extension of the self-consistent scheme for viscoplastic behaviours and a phenomenological description of dislocation patterning using a hardening model recently developed for two-stage strain paths. These two ingredients allow to compare the model with experimental crystallographic texture after rolling as well as experimental observations of the intragranular substructure using orientation imaging by Electron Back-Scattered Diffaction. It is shown that the rolling texture is correctly simulated and successful predictions of the orientation of dislocation sheets are obtained.},
doi = {10.1063/1.2729497},
journal = {AIP Conference Proceedings},
number = 1,
volume = 907,
place = {United States},
year = {Sat Apr 07 00:00:00 EDT 2007},
month = {Sat Apr 07 00:00:00 EDT 2007}
}