Importance of crystallographic texture of AZ31B on flow stress anisotropy and tension-compression asymmetry

M. Al-Maharbi*, D. Foley, I. Karaman, I. Beyerlein, K. T. Hartwig, L. J. Kecskes, S. Mathaudhu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The crystallographic texture of AZ31B magnesium alloy processed using equal channel angular extrusion (ECAE) was found to play an important role in the flow stress anisotropy and tension-compression (T/C) asymmetry of this alloy. In order to obtain different crystallographic textures, the AZ31B Mg alloy was ECAE processed following different conventional and hybrid ECAE routes. A visco-plastic self-consistent (VPSC) crystal plasticity model was employed to predict the texture evolution during ECAE. Despite the dynamic recrystallization taking place during the ECAE processing at 200°C and the continuous grain refinement with the number of ECAE passes, the crystallographic texture was successfully predicted up to four passes. The flow stress anisotropy and T/C asymmetry of the samples processed up to four ECAE passes, were, then compared with those processed up to one and two passes only.

Original languageEnglish
Title of host publicationMagnesium Technology
Pages445-450
Number of pages6
Publication statusPublished - 2010
EventMagnesium Technology 2010 - TMS 2010 Annual Meeting and Exhibition - Seattle, WA, United States
Duration: Feb 14 2010Feb 18 2010

Other

OtherMagnesium Technology 2010 - TMS 2010 Annual Meeting and Exhibition
CountryUnited States
CitySeattle, WA
Period2/14/102/18/10

Keywords

  • AZ31B
  • Equal channel angular extrusion
  • Flow Stress Anisotropy
  • Magnesium
  • Tension-compression asymmetry
  • Viscoplastic self-consistent model

ASJC Scopus subject areas

  • Engineering(all)

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