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Titolo:
Lattice orientation dependence of the stored energy during cold-rolling ofpolycrystalline steels
Autore:
Diligent, S; Gautier, E; Lemoine, X; Berveiller, M;
Indirizzi:
EMN, Sci & Genie Mat Met Lab, F-54042 Nancy, France EMN Nancy France F-54042 Sci & Genie Mat Met Lab, F-54042 Nancy, France SOLLAC, LEDEPP, F-57191 Florange, France SOLLAC Florange France F-57191SOLLAC, LEDEPP, F-57191 Florange, France ISGMP, LPMM, F-57045 Metz, France ISGMP Metz France F-57045ISGMP, LPMM, F-57045 Metz, France
Titolo Testata:
ACTA MATERIALIA
fascicolo: 19, volume: 49, anno: 2001,
pagine: 4079 - 4088
SICI:
1359-6454(20011114)49:19<4079:LODOTS>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
LOW-CARBON STEELS; LARGE STRAINS; ELASTOPLASTICITY; SIMULATION; METALS;
Keywords:
stored energy; steels; recrystallization & recovery;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Gautier, E EMN, Sci & Genie Mat Met Lab, LSG2M,Parc Saurupt, F-54042 Nancy, France EMN LSG2M,Parc Saurupt Nancy France F-54042 4042 Nancy, France
Citazione:
S. Diligent et al., "Lattice orientation dependence of the stored energy during cold-rolling ofpolycrystalline steels", ACT MATER, 49(19), 2001, pp. 4079-4088

Abstract

During cold deformation, about 10% of the energy spent is stored in the polycrystalline material in the form of the elastic energy associated to crystal defects. The latter can be measured experimentally by calorimetry, X-ray diffraction. In this work, we propose a direct calculation based on an elastic-plastic self-consistent model, The part of the stored energy related to second order (intergranular) stresses is estimated for a cold-rolled Ti-IF steel. The stored energy as well as the accumulated plastic strain are reported as a function of the final crystallographic orientation of the grains. Along the alpha -fiber, the stored energy increases from {001}< 110 > to {111}< 110 > while the plastic strain decreases. This dependence with thecrystallographic orientation is in good agreement with experimental results. With respect to recrystallization, experiments show that {111}-grains nucleate first. This highlights the specific role of second order (intergranular) stresses for recrystallization. (C) 2001 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.

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Documento generato il 27/10/20 alle ore 10:24:10