Dependence of Thermal Stability of Ultra Fine Grained Metals on Grain Size

  1. Prof. Dr. Michael Zehetbauer3 and
  2. Prof. Ruslan Z. Valiev4
  1. J. Cížek1,
  2. I. Procházka1,
  3. R. Kužel1,
  4. M. Cieslar1,
  5. I. Stulíková1 and
  6. R.K. Islamgaliev2

Published Online: 28 JAN 2005

DOI: 10.1002/3527602461.ch11e

Nanomaterials by Severe Plastic Deformation

Nanomaterials by Severe Plastic Deformation

How to Cite

Cížek, J., Procházka, I., Kužel, R., Cieslar, M., Stulíková, I. and Islamgaliev, R.K. (2004) Dependence of Thermal Stability of Ultra Fine Grained Metals on Grain Size, 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.ch11e

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

    Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic

  2. 2

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

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:

  • thermal stability;
  • ultra fine grained metals;
  • grain size;
  • high pressure torsion (HPT);
  • severe plastic deformation (SPD)

Summary

High pressure torsion (HPT) is a technique based on severe plastic deformation (see [1] for review). The initial coarse-grained sample is deformed by torsion and simultaneously by high pressure of several GPa is applied. Ultra fine grained (UFG) metals with grain size around 100 nm can be produced by HPT. The mean grain size of HPT prepared sample depends on material and parameters of the deformation. Different grain size can be obtained, e.g. by varying the applied hydrostatic pressure.