Mechanism of eutectic solidification of aluminum-silicon alloys
Abstract
A mechanism is presented to explain the formation of the eutectic phases in Al-Si hypoeutectic alloys. The mechanism is supported with results of non-equilibrium thermal analyses, and microstructure evidence obtained from scanning and transmission electron microscopy, as well as selected area electron diffraction analyses and elemental x-ray mapping performed on Al-Si alloy samples of precisely controlled chemistry.