19. The Effect of Grain Size on the Bolt Load Retention Behaviour of AMC-SC1

  1. Prof. Dr. K. U. Kainer
  1. C.J. Bettles1,
  2. Lihui Zheng2,
  3. K. Venkatesan1 and
  4. Ma Qian2

Published Online: 22 APR 2005

DOI: 10.1002/3527603565.ch19

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

Bettles, C.J., Zheng, L., Venkatesan, K. and Qian, M. (2003) The Effect of Grain Size on the Bolt Load Retention Behaviour of AMC-SC1, 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.ch19

Editor Information

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

Author Information

  1. 1

    CRC for Cast Metals Manufacturing (CAST), CSIRO Manufacturing & Infrastructure Technology, Melbourne, Australia.

  2. 2

    CRC for Cast Metals Manufacturing (CAST), The University of Queensland, St Lucia, Australia

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:

  • AMC-SC1;
  • grain size;
  • bolt load retention behaviour

Summary

The alloy developed by the CRC for Cast Metals Manufacturing in collaboration with the Australian Magnesium Corporation, AMC-SC1, is a sand cast, heat treatable alloy, and its properties, therefore, may be dependent on the grain size achieved within the casting. One important property in relation to engine block applications is bolt load retention. It is shown that, within the range of grain sizes from 50 µm to 550 µm, the overall bolt load retention behaviour of AMC-SC1 at 423 – 450 K and loads of 8 kN and 11 kN is only mildly dependent on the absolute grain size. However, the individual factors contributing to the overall bolt load retention behaviour are themselves much more responsive to changes in grain size. For reliable BLR behaviour at 8 kN and 11 kN loadings, the grain size of AMC SC1 should be maintained below 200 µm.