Strain Measurement in the ECAP Process

  1. Prof. Dr. Michael Zehetbauer2 and
  2. Prof. Ruslan Z. Valiev3
  1. J. C. Werenskiold and
  2. H. J. Roven

Published Online: 28 JAN 2005

DOI: 10.1002/3527602461.ch10i

Nanomaterials by Severe Plastic Deformation

Nanomaterials by Severe Plastic Deformation

How to Cite

Werenskiold, J. C. and Roven, H. J. (2004) Strain Measurement in the ECAP Process, 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.ch10i

Editor Information

  1. 2

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

  2. 3

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

Author Information

  1. Norwegian University of Science and Technology, Trondheim, Norway

Publication History

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

ISBN Information

Print ISBN: 9783527306596

Online ISBN: 9783527602469



  • strain measurement;
  • equal channel angular pressing (ECAP);
  • severe plastic deformation (SPD);
  • nanoscaled microstructures;
  • high strain rate superplasticity


Material processing by severe plastic deformation, SPD is currently receiving much attention due to the promising results in regard to creating sub-micron grained structures in commercial alloys. So far, one of the most promising SPD techniques has been equal channel angular pressing, ECAP. In this process, high shear strains can be obtained by multiple passes through a die without any reduction in the cross sectional area. Nanoscaled microstructures and high strain rate superplasticity are the main achievements from this process, and has been reported frequently the last few years [1–6].