Fatigue of Severely Deformed Metals

  1. Prof. Dr. Michael Zehetbauer2 and
  2. Prof. Ruslan Z. Valiev3
  1. A. Vinogradov and
  2. S. Hashimoto

Published Online: 28 JAN 2005

DOI: 10.1002/3527602461.ch12a

Nanomaterials by Severe Plastic Deformation

Nanomaterials by Severe Plastic Deformation

How to Cite

Vinogradov, A. and Hashimoto, S. (2004) Fatigue of Severely Deformed Metals, 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.ch12a

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. Department of Intelligent Materials Engineering, Osaka City University, Osaka, Japan

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:

  • fatigue performance;
  • ultra-fine grain materials;
  • severe plastic deformation (SPD);
  • strengthening of polycrystalline materials;
  • cyclic deformation;
  • pre-deformed metals

Summary

In this brief communication, we would like to review present data on fatigue performance of ultra-fine grain materials fabricated by severe plastic deformation (SPD) and to discuss the possible mechanisms of their plastic deformation and degradation in light of currently available experimental data. The most prominent effect of SPD is often associated with significant grain refinement down to the nanoscopic scale. The other evident effect, which accompanies intensive plastic straining, is the dislocation accumulation up to limiting densities of 1016 m−2. Since namely these two factors, the grain size and the dislocation density, govern the strengthening of polycrystalline materials, we shall primarily confine ourselves to their role in cyclic deformation of severely pre-deformed metals.