Article ID Journal Published Year Pages File Type
1622230 Journal of Alloys and Compounds 2009 5 Pages PDF
Abstract

In the present work, the microstructure and the solidification process of an ingot metallurgy hypereutectic Al–Mg2Si alloy with extra Si were studied. Primary Mg2Si phase is surrounded by Al–Mg2Si binary eutectic and then by Al–Mg2Si–Si ternary eutectic structure. Primary Mg2Si phase at the centers shows dendritic or polyhedral morphologies. Al–Mg2Si binary eutectic cells with regular morphologies have flake-like Mg2Si surrounded by α-Al. Al–Mg2Si–Si ternary eutectic cells distribute among binary eutectic cells and make binary eutectic cells separated to be relatively independent “islands”.

Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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