Metallurgy, Vol. 53 No. 3, 2014.
Original scientific paper
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
; CINVESTAV-IPN Unidad Saltillo, Ramos Arizpe Coah., México
M. de J. Castro-Román
; CINVESTAV-IPN Unidad Saltillo, Ramos Arizpe Coah., México
M. Herrera-Trejo
; CINVESTAV-IPN Unidad Saltillo, Ramos Arizpe Coah., México
S. Belmares-Perales
; Facultad de Ciencias Físico-Matemáticas de la UANL, San Nicolás de los Garza NL, México
P. Orozco-González
; Universidad Autónoma de Zacatecas, Zacatecas, Zac., México
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.
Keywords
aluminium alloy; cooling rate; thermal analysis; solidification; intermetallic compounds
Hrčak ID:
119539
URI
Publication date:
1.7.2014.
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