66. Microstructure/Property Relationships of Three Mg-RE-Zn-Zr Alloys
- Prof. Dr. K. U. Kainer
Published Online: 22 APR 2005
Copyright © 2004 Wiley-VCH Verlag GmbH & Co. KGaA
Magnesium: Proceedings of the 6th International Conference Magnesium Alloys and Their Applications
How to Cite
Gill, L., Lorimer, G.W. and Lyon, P. (2003) 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
GKSS-Forschungszentrum, Institut für Werkstoffforschung, Max-Planck-Straße, 21502 Geesthacht, Germany
- Published Online: 22 APR 2005
- Published Print: 27 NOV 2003
Print ISBN: 9783527309757
Online ISBN: 9783527603565
- microstructure/property relationships;
- Mg-RE-Zn-Zr alloys
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.  Wilson et al  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  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.