Effect of an axial high magnetic field on Sn dendrite morphology of Pb-Sn alloys during directional solidification

International audienceThe influence of an axial high magnetic field (up to 12 T) on Sn dendrite morphology in directionally solidified Pb-Sn alloys has been investigated experimentally. Results show that the magnetic field has modified the Sn-dendrite morphology dramatically. Indeed, it has been found that the applied magnetic field has destroyed the Sn-dendrite array and caused the occurrence of the columnar-to-equiaxed transition (CET) at lower growth speeds (R = 8T) at a low growth speed (R <= 20 mu m/s) during directional solidification