66. Microstructure/Property Relationships of Three Mg-RE-Zn-Zr Alloys

  1. Prof. Dr. K. U. Kainer
  1. L. Gill1,
  2. G.W. Lorimer1 and
  3. P. Lyon2

Published Online: 22 APR 2005

DOI: 10.1002/3527603565.ch66

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

Gill, L., Lorimer, G.W. and Lyon, P. (2005) Microstructure/Property Relationships of Three Mg-RE-Zn-Zr 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.ch66

Editor Information

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

Author Information

  1. 1

    Manchester Materials Science Centre, UK

  2. 2

    Magnesium Elektron Ltd, Manchester (UK)

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:

  • microstructure/property relationships;
  • Mg-RE-Zn-Zr alloys

Summary

Nd has a high solid solubility in magnesium and the Mg-Nd system exhibits age hardenability. [1,2] Additions of Zn to Mg-Nd alloys suppress the binary precipitation sequence and forms a pseudo-binary system involving precipitation of a ternary phase. [3] Wilson et al [4] found that additions of 0.5wt% Zn to a Mg-3 wt% Nd alloy increased the time to reach peak hardness and delayed over-ageing at 200 °C. Additions of 1.35wt%Zn did not have a similar beneficial effect on the precipitation hardening reaction. Rokhlin [5] reported that increasing Zn content reduced Nd solubility and was associated with a decrease in strengthening during ageing.

The present paper gives details of the ageing response of three Mg-RE-Zn-Zr alloys and the quench sensitivity of one.