Modeling of large plastic deformation behavior and anisotropy evolution in cold rolled bcc steels using the viscoplastic φ-model-based grain-interaction

S. M'Guil, W. Wen, S. Ahzi, J. J. Gracio

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

In this paper, a micromechanical approach is used to predict the mechanical response and anisotropy evolution in BCC metals. Particularly, cold rolling textures and the corresponding yield surfaces are simulated using the newly developed viscoplastic intermediate φ-model. This model takes into account the grain interactions but without the Eshelby theory. In this work, we compare our results to those predicted by the upper and lower bounds (Taylor and Static) as well as those of the viscoplastic self-consistent (VPSC) model. The results are compared in terms of predicted slip activity, texture evolution and yield loci. For the simulations, we considered two cases: the restricted slip, {1 1 0}〈1 1 1〉, and the pencil glide, {1 1 0}〈1 1 1〉 + {1 1 2}〈1 1 1〉 + {1 2 3}〈1 1 1〉. In addition, we present a qualitative comparison with experimental cold rolling textures taken from the literature for several BCC metals: electrical, ferritic, Interstitial-Free (IF) and low carbon steels. Our results show that the pencil glide assumption is adequate for low carbon and IF-steels and that the restricted slip assumption is well suited for ferritic and electrical steels.

Original languageEnglish
Pages (from-to)5840-5853
Number of pages14
JournalMaterials Science and Engineering A
Volume528
Issue number18
DOIs
Publication statusPublished - 15 Jul 2011

    Fingerprint

Keywords

  • Anisotropy
  • BCC metals
  • Crystal plasticity
  • Micromechanics
  • Rolling texture
  • Steel
  • φ-Model

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this