Abstract
The influence of vertical and steady electromagnetic force fields applied during the solidification of representative aluminum alloys was investigated. The experiments were performed both in the absence and in the presence of electromagnetic body force fields, oriented either upward or downward, and for various degrees of heat extraction rate. Several physical mechanisms of magnetohydrodynamic origin, acting on the macro- and microstructure of these alloys, have been revealed. It has been established that the stirring and liquid-solid-phase separation phenomena results in a decided grain refinement and, under certain conditions, in the segregation of the most part of the eutectic phase from the primary solid.
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