Artículos de revistas
Microstructure and mechanical behavior of Al9Si0.8Fe alloy with different Mn contents
Fecha
2017-07-03Registro en:
Materials Science and Technology (United Kingdom), v. 33, n. 10, p. 1192-1199, 2017.
1743-2847
0267-0836
10.1080/02670836.2016.1271966
2-s2.0-85009291644
2-s2.0-85009291644.pdf
1514019536224632
0000-0003-4172-3689
Autor
Universidade Estadual Paulista (Unesp)
Escola SENAI Nadir Dias de Figueiredo
Cidade Universitária
Institución
Resumen
It has been reported that the detrimental effect of Fe on the mechanical properties of Al alloys can be eliminated through the addition of Mn. In this study, we examine the effects of the addition of different Mn contents (0.1, 0.2, 0.4 and 0.7 wt-% of Mn) on the microstructure and mechanical behaviour of Al9Si0.8Fe alloy. It is shown that the presence of up to 0.4 wt-% of Mn changed the platelike morphology of β-Al5FeSi into α-Al15(Fe,Mn)3Si2 with a Chinese script-like morphology. Mn contents higher than 0.4 wt-% promoted the formation of α-Al15(Fe,Mn)3Si2 phase with a polygonal morphology. The effect of the addition of up to 0.7 wt-% of Mn on the mechanical properties of Al9Si0.8Fe alloys is in fact quite negligible.