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 of the formosan medical association2014Vol. 53pp. 314-316
154
hernndez-rodrguez2014metalurgijaeffects
Abstract
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.