Investigation of pulse electromagnetic on Grain Refinement in 5356 Aluminum Alloy Casting

Abstract In the production of aluminum castings, grain refiners are extensively used to achieve the desired grain refinement. However, the high cost associated with these materials significantly increases the overall expenses of the casting process. As a result, one of the primary goals in foundry operations is to implement more cost-effective methods of grain refinement. This study focuses on the innovative use of low-energy pulsed electromagnetic energy as an alternative approach for grain refinement during the casting of 5356 aluminum alloy. The research conclusively demonstrates the effectiveness of applying electromagnetic energy directly to the molten metal to refine the grain structure. Experimental investigations were carried out in an industrial casting environment, where the influence of electromagnetic energy on the solidification behavior of the 5356 aluminum alloy was systematically analyzed. The findings revealed a significant improvement in grain refinement, with a 16% reduction in grain size observed in the low cooling region of the cast material. Moreover, the application of electromagnetic energy was shown to promote the precipitation of the silicon (Si) phase, further enhancing the microstructural properties of the alloy. These results highlight the potential of using low-energy pulsed electromagnetic technology as a practical and cost-effective solution for grain refinement in aluminum foundry operations. The insights gained from this research may contribute to the development of more efficient casting techniques, ultimately reducing production costs while maintaining or improving the quality of the final product.