Influence of low-frequency pulsed Lorentz force on the melt flow and the structure of solidifying material

A well-aimed modification of casting material properties still remains an essential task for scientific investigation, especially concerning to the methods of electromagnetic fields application due to their ability of contactless interaction with the melt. The size of crystallization grains for metals is a crucial parameter, determining their physical and mechanical properties. Interaction of strong or weak magnetic fields with solidifying material has demonstrated a high scientific and technical potential for reforming the micro- and macrostructure of metals or non-metallic materials. The present paper considers results of the investigation of pulsed Lorentz force influence on the melt motion and solidification process in the cylindrical crucible. The research was provided numerically and experimentally for the ternary alloy GaInSn, to obtain the information about the flow. A solidification experiment with Al-alloy was aimed to recognize the influence of the melt motion, driven by the steady and pulsed electromagnetic force, on the final metal structure.