Stress Relaxations in a Magnesium Alloy and Composite

  1. Prof. Dr.-Ing. K. U. Kainer
  1. Zuzanka Trojanová1,
  2. Pavel Lukáč1,
  3. Werner Riehemann2 and
  4. Frank von Buch3

Published Online: 15 MAY 2006

DOI: 10.1002/3527607552.ch107

Magnesium Alloys and their Applications

Magnesium Alloys and their Applications

How to Cite

Trojanová, Z., Lukáč, P., Riehemann, W. and von Buch, F. (2006) Stress Relaxations in a Magnesium Alloy and Composite, in Magnesium Alloys and their Applications (ed K. U. Kainer), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527607552.ch107

Editor Information

  1. GKSS-Forschungszentrum Geesthacht GmbH, Institut für Werkstofforschung, Max-Planck- Straße, D-21502 Geesthacht, Germany

Author Information

  1. 1

    Department of Metal Physics, Charles University, Praha, Czechoslovakia

  2. 2

    Department of Materials Engineering and Technology, Technical University Clausthal, Germany

  3. 3

    Volkwagen AG, Wolfsburg, Germany

Publication History

  1. Published Online: 15 MAY 2006
  2. Published Print: 20 SEP 2000

ISBN Information

Print ISBN: 9783527302826

Online ISBN: 9783527607556

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Keywords:

  • magnesium alloys;
  • magnesium composite;
  • stress relaxations

Summary

The paper describes the stress relaxation phenomena in AM50 magnesium alloy and Mg reinforced by short Saffil fibres. The materials were prepared by squeeze casting. The specimens were annealed step by step at increasing temperatures and then stress relaxation was measured at temperature of 31°C. The stress relaxation curves were analysed and the modulus defect, relaxation strength and activation energy were estimated. It is very difficult to draw conclusions on the mechanisms responsible for the stress relaxation but a part of the relaxation strength is due to reversible dislocation movement.