Deformation Behaviour of Copper Subjected to High Pressure Torsion

  1. Prof. Dr. Michael Zehetbauer3 and
  2. Prof. Ruslan Z. Valiev4
  1. A.A. Dubravina1,
  2. I.V. Alexandrov1,
  3. R.Z. Valiev1 and
  4. A. V. Sergueeva2

Published Online: 28 JAN 2005

DOI: 10.1002/3527602461.ch8e

Nanomaterials by Severe Plastic Deformation

Nanomaterials by Severe Plastic Deformation

How to Cite

Dubravina, A.A., Alexandrov, I.V., Valiev, R.Z. and Sergueeva, A. V. (2004) Deformation Behaviour of Copper Subjected to High Pressure Torsion, in Nanomaterials by Severe Plastic Deformation (eds M. Zehetbauer and R. Z. Valiev), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527602461.ch8e

Editor Information

  1. 3

    Institut für Materialphysik, Universität Wien, Boltzmanngasse 5, 1090 Wien, Austria

  2. 4

    Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, 12 K. Marks Str., Ufa, 450 000, Russia

Author Information

  1. 1

    Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, Ufa, Russia

  2. 2

    Department of Chemical Engineering & Materials Science, University of California, Davis, USA

Publication History

  1. Published Online: 28 JAN 2005
  2. Published Print: 25 FEB 2004

ISBN Information

Print ISBN: 9783527306596

Online ISBN: 9783527602469

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Keywords:

  • deformation behaviour;
  • copper;
  • high pressure torsion (HPT);
  • nanostructured material;
  • severe plastic deformation (SPD);
  • superplasticity

Summary

Nanostructured materials processed by severe plastic deformation (SPD) can exhibit new and extraordinary mechanical behaviour [1, 2]. For example, these materials display high strength properties, low temperature and high strain rate superplasticity, and so on. Recently it has been demonstrated that the formation of nanostructures by SPD in metals and alloys leads to a significant increase in strength while the high level of ductility preserves [3, 4]. However, many researches failed to achieve both enhanced strength and enhanced ductility in materials using SPD. Contradictory results in the works by different scientists can be explained by the fact that mechanical properties of SPD nanomaterials are very sensitive to specific features of forming nanostructures. Such peculiarities of the microstructures depend on the applied SPD scheme, deformation routes and regimes, geometry of samples, etc. [1].

Based on previous data, the general aim of the current work is detailed investigation of the deformation behavior of Cu produced by HPT with and without subsequent annealing in terms of dependence on the type of microstructure formed.