Mechanical Properties of AZ91 Alloy after Equal Channel Angular Pressing

  1. Prof. Dr. Michael Zehetbauer4 and
  2. Prof. Ruslan Z. Valiev5
  1. Kristian Máthis1,2,
  2. Alexandre Mussi3,
  3. Zuzanka Trojanová1,
  4. Pavel Lukác1,
  5. Edgar Rauch3 and
  6. János Lendvai2

Published Online: 28 JAN 2005

DOI: 10.1002/3527602461.ch3m

Nanomaterials by Severe Plastic Deformation

Nanomaterials by Severe Plastic Deformation

How to Cite

Máthis, K., Mussi, A., Trojanová, Z., Lukác, P., Rauch, E. and Lendvai, J. (2004) Mechanical Properties of AZ91 Alloy after Equal Channel Angular Pressing, 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.ch3m

Editor Information

  1. 4

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

  2. 5

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

Author Information

  1. 1

    Department of Metal Physics, Charles University, Prague, Czech Republic

  2. 2

    Department of General Physics, Eötvös University, Budapest, Hungary

  3. 3

    Génie Physique et Mécanique des Matériaux, INP Grenoble – ENSPG, France

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:

  • mechanical properties;
  • AZ91 alloy;
  • equal channel angular pressing (ECAP);
  • superplastic behavior

Summary

The deformation behavior of a fine-grained AZ91 alloy has been investigated. The specimens were prepared using equal channel angular pressing (ECAP). Mechanical properties of the AZ91 alloy after multi-angular pressing were estimated at testing temperatures from 20 °C to 300 °C. The values of the yield stress and the maximum stress of ECAP specimens are higher than those of initial specimens. Elongation to fracture (ductility) increases with increasing test temperature and with number of extrusion. The values of the strain rate sensitivity of the flow stress suggest a superplastic behavior of the ECAP processed material above 200 °C.