10. Creep Resistance and Creep Kinetics of Mg-alloys

  1. Prof. Dr. K. U. Kainer
  1. W. Blum1,
  2. Y. J. Li1,
  3. X. H. Zeng1,
  4. B. von Großmann2,
  5. C. Haberling2 and
  6. H.-G. Haldenwanger2

Published Online: 22 APR 2005

DOI: 10.1002/3527603565.ch10

Magnesium: Proceedings of the 6th International Conference Magnesium Alloys and Their Applications

Magnesium: Proceedings of the 6th International Conference Magnesium Alloys and Their Applications

How to Cite

Blum, W., Li, Y. J., Zeng, X. H., von Großmann, B., Haberling, C. and Haldenwanger, H.-G. (2003) Creep Resistance and Creep Kinetics of Mg-alloys, in Magnesium: Proceedings of the 6th International Conference Magnesium Alloys and Their Applications (ed K. U. Kainer), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527603565.ch10

Editor Information

  1. GKSS-Forschungszentrum, Institut für Werkstoffforschung, Max-Planck-Straße, 21502 Geesthacht, Germany

Author Information

  1. 1

    Universität Erlangen-Nürnberg, Inst. f. Werkstoffwissenschaften LS1, 91058 Erlangen, Germany

  2. 2

    Audi AG, 85045 Ingolstadt, Germany

Publication History

  1. Published Online: 22 APR 2005
  2. Published Print: 27 NOV 2003

ISBN Information

Print ISBN: 9783527309757

Online ISBN: 9783527603565

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Keywords:

  • magnesium alloys;
  • creep resistance;
  • creep kinetics

Summary

Resistance against creep (inelastic deformation ε with time t under stress σ at absolute temperature T) is an important issue in application of Mg-base light-weight alloys at temperatures up to 200 °C. However, the data base on creep properties of Mg-alloys is rather poor. Only few ε t curves for constant σ and T have been published. These are often limited to primary creep at extremely low rates in a small range of stresses. This will be demonstrated with examples from the literature. In fact, creep should be treated as an integral part of inelastic deformation, to be quantified by the relation between σ, ε (inelastic) strain rate equation image, and T and furthermore to be linked to microstructure an its evolution. This concept has been applied before to several conventional Mg-base alloys [1, 2]. In this paper we extend it to the new creep resistant alloy AJ52. We will demonstrate that its creep resistance reaches or even tops that of most other Mg-base alloys.