Metalurgija (Jul 2014)

Effects of the Fe/Mn weight ratio and cooling rate on the area fractions of α-AlFeSi and β-AlFeSi phases in Al-7.5Si-3.75Cu-0.5Mg-0.55Fe-xMn aluminum alloy

  • A. Hernández-Rodríguez,
  • M. de J. Castro-Román,
  • M. Herrera-Trejo,
  • S. Belmares-Perales,
  • P. Orozco-González

Journal volume & issue
Vol. 53, no. 3
pp. 314 – 316

Abstract

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The effects of the Fe/Mn weight ratio (1,42 or 3,05) and cooling rate (0,1, 0,2, 0,5, or 0,6 °C/s) on the area fraction of α-AlFeSi and β-AlFeSi intermetallic compounds in Al-7.5Si-3.75Cu-0.5Mg-0.55Fe-xMn aluminum alloy were studied. It was found that the difference between the formation temperature of the β-AlFeSi phase and the formation temperature of the eutectic Al-Si may determine the possibilities of β-AlFeSi elimination/reduction by increasing the cooling rate.

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