Low Cost Particulate Reinforced Aluminium Matrix Composites for Automotive Brake Drum

  1. B. Jouffrey
  1. C. Badini1,
  2. P. Fino1,
  3. L. Lorenzi2 and
  4. A. Zanoni2

Published Online: 9 MAY 2006

DOI: 10.1002/3527606165.ch50

Microstructural Investigation and Analysis, Volume 4

Microstructural Investigation and Analysis, Volume 4

How to Cite

Badini, C., Fino, P., Lorenzi, L. and Zanoni, A. (2000) Low Cost Particulate Reinforced Aluminium Matrix Composites for Automotive Brake Drum, in Microstructural Investigation and Analysis, Volume 4 (ed B. Jouffrey), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527606165.ch50

Author Information

  1. 1

    Politecnico di Torino, Italy

  2. 2

    Centro Ricerche Fiat, Orbassano (TO), Italy

Publication History

  1. Published Online: 9 MAY 2006
  2. Published Print: 20 APR 2000

Book Series:

  1. EUROMAT 99

ISBN Information

Print ISBN: 9783527301218

Online ISBN: 9783527606160

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Keywords:

  • microstructural investigation;
  • metal matrix composites;
  • particulate reinforced aluminium matrix composites for automotive brake drum

Summary

The requirement of reducing weight in road vehicles has led to both considerable changes in car design and search for light weight materials. On the other hand, the high sensitivity of the automotive industry to production cost has put a limitation on materials choice. Particulate reinforced aluminium MMCs are promising candidate for automotive applications since they offer high specific stiffness and strength, good wear resistance and suitable thermal properties; furthermore, they are readily available at reasonable prices and can be processed using conventional technologies. In this work two kinds of MMCs suitable for producing cast automotive brake drums have been investigated: a material produced by Duralcan and a ULTALITE® low cost new MMCs. Casting processes of aluminium base/SiC composites are well known, whereas for ULTALITE® material casting process studies are in progress. Tribological studies showed that both the SiC and fly ash reinforced composites, having improved wear resistance with respect to the corresponding unreinforced alloys, are suitable for brake components fabrication. This paper is aimed at investigating the thermal fatigue behaviour of these materials and the performances of brake drums produced by using these composites.