Characteristic features of silumin alloys crystallization

摘要

The results differential thermal analysis (DTA) of crystallization of multicomponent silumin alloys with 8÷22 wt %Si and Mg, Cu, Ni and Fe minor admixtures are presented in the paper. It has been proved that to any one of the solid phasescrystallizing from liquid (α, β, Mg{sub}2Si, Al{sub}6Cu{sub}3Ni, Al{sub}2Cu, Al{sub}9Fe{sub}2Si) a particular thermal effect can be deduced and identified. A new hypothesis concerning hypereutectic silumin alloys crystallization has been proposed in the work.