Metallurgical Transactions A

, Volume 20, Issue 3, pp 383–389 | Cite as

The electrical conductivity of cast Al−Si alloys in the range 2 to 12.6 wt pct silicon

  • M. H. Mulazimoglu
  • R. A. L. Drew
  • J. E. Gruzleski


The changes in electrical conductivity of cast Al−Si alloys, in the range of 2 to 12.6 wt pct silicon due to strontium additions (0.03 wt pct) have been investigated and explained in terms of variations in microstructure. The strontium-containing alloys exhibited a higher conductivity than alloys with no strontium, and this conductivity difference increased as the silicon and magnesium contents were increased and the solidification rate was decreased. It has been demonstrated that this difference is due to changes in microstructural features of the eutectic silicon upon modification.


Metallurgical Transaction Eutectic Silicon Silicon Phase Modify Alloy Unmodified Alloy 
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Copyright information

© The Minerals, Metals & Materials Society and ASM International 1989

Authors and Affiliations

  • M. H. Mulazimoglu
    • 1
  • R. A. L. Drew
    • 1
  • J. E. Gruzleski
    • 1
  1. 1.Department of Mining and Metallurgical EngineeringMcGill UniversityMontrealCanada

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