Studies on Cadmium and Silver Trace Element Modified AZ91C Magnesium Alloy

  1. Prof. Dr.-Ing. K. U. Kainer
  1. Rajashekhar Shabadi1,
  2. Rajan Ambat2,
  3. E. S. Dwarakadasa1,
  4. K. L. Bhat3 and
  5. V. Gopalakrishnan4

Published Online: 15 MAY 2006

DOI: 10.1002/3527607552.ch11

Magnesium Alloys and their Applications

Magnesium Alloys and their Applications

How to Cite

Shabadi, R., Ambat, R., Dwarakadasa, E. S., Bhat, K. L. and Gopalakrishnan, V. (2000) Studies on Cadmium and Silver Trace Element Modified AZ91C Magnesium Alloy, in Magnesium Alloys and their Applications (ed K. U. Kainer), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527607552.ch11

Editor Information

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

Author Information

  1. 1

    UGC Center for Advanced Studies, Department of Metallurgy., Indian Institute of Science, Bangalore - 12, India

  2. 2

    School of Metallurgy and Materials, University of Birmingham, United Kingdom

  3. 3

    Department of Metallurgical and Materials Engineering, KREC, Surathkal, India

  4. 4

    Foundry and Forge Division, Hindusthan Aeronautics Limited, Bangalore - 17, India

Publication History

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

ISBN Information

Print ISBN: 9783527302826

Online ISBN: 9783527607556

SEARCH

Keywords:

  • magnesium alloys;
  • alloy development;
  • cadmium and silver trace element modified AZ91C magnesium alloy

Summary

The mechanical properties of AZ and AM series of alloys were found to decrease at temperatures exceeding 120-130 °C [11]. This behavior has been attributed to the grain boundary sliding of the magnesium alloys and the phase Mg17Al12, which has a melting point of approximately 460 °C and found to be comparatively soft at higher temperatures. This softening behavior of the phase Mg17Al12 did not serve the purpose of pinning down the grain boundaries. Hence many researchers have come out with different suggestions for improving the creep behavior of AZ and AM series of alloys [10-12]. The addition of 1 % calcium improves the creep strength of Mg-Al alloys but makes them susceptible to hot cracking [12]. In several alloying systems addition of cadmium and silver offered an improvement in grain refinement and good mechanical properties [14]. Thus it is expected that addition of these elements to magnesium alloys could have beneficial effects on mechanical properties. Thus the present study aims at evaluating the effect of cadmium and silver trace additions on AZ91 alloys.