Effect of a high gradient magnetic field on the distribution of the solute Si and the morphology of the primary Si phase.
Résumé
Effect of a high gradient magnetic field on the distribution of the solute Si and the primary Si phase in the Al-18 wt.% Si alloy has been investigated. It has been found that a high gradient magnetic held is capable of separating the solute Si and the primary Si phase from matrix. Moreover, the field also affects the shape of the primary Si phase: indeed. the field has refined the primary Si phase and caused the morphological transition from flake to grain. (C) 2009 Elsevier B.V. All rights reserved.