Abstract
To clarify the effects of the electric and magnetic forces on the solidified structure, the solidification experiments were systematically conducted on the Sn-10%Pb alloy. A direct or an alternative electric currents, magnetic currents and the currents combined them were introduced into the molten metal. The alloy was solidified under the nine different conditions.
The effects of the electric field, the magnetic field and the combined field on each solidified structure were examined on the basis of the solidified structure and the theoretical considerations of the fluid flow caused under each experimental condition.
It is concluded that the columnar structure can be developed by preventing the fluid flow and the fine equi-axed zone can be obtained by the forced fluid flow.
