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Journal of Materials Science

, Volume 44, Issue 5, pp 1212–1218 | Cite as

Stress-based model on work hardening and softening of materials at large strains: corrugation process of sheet

  • E. Hosseini
  • M. KazeminezhadEmail author
Article

Abstract

In this article, a stress-based model is proposed to investigate the strength evolution during severe plastic deformation (SPD) or large strains. In this model, the work hardening mechanisms are described by Frank-Read sources, while the cross-slip and climb processes are considered as the mechanisms for work softening phenomenon. Within all SPD processes, one of corrugation processes such as constrained groove pressing is chosen to assess the validity of the model predictions. The model predictions are in agreement with the earlier reports and the experimental results achieved in this study.

Keywords

Dislocation Density Severe Plastic Deformation Screw Dislocation Cell Interior Accumulative Roll Bonding 

Notes

Acknowledgement

The authors wish to thank the research board of Sharif University of Technology for the financial support and the provision of the research facilities used for this study.

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Department of Materials Science and EngineeringSharif University of TechnologyTehranIran

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