Enhancing Mechanical Characteristics of LM9 Aluminum Alloy by Optimization of Electromagnetic Vibration Analysis

This study investigates the enhancement of mechanical properties advancement of mechanical properties within LM9 aluminum alloy by optimizing electromagnetic vibration analysis. LM9 aluminum silicon nanoparticle alloy, a significant nonferrous casting material, faces challenges concerning grain size and distribution of silicon particles, which directly impact its overall performance. Various techniques have been explored to refine grain structure and modify silicon particle distribution to tackle these issues. This research specifically investigates the impact of external forces applied during solidification to enhance casting characteristics of LM9. Electromagnetic vibration (EMV) is utilized as the external force, with parameters such as vibration duration, pulse width modulation (PWM), and pouring temperature systematically assessed using an optimal Electromagnetic vibration approach. The findings reveal a noteworthy enhancement in alloy hardness attributed to the fragmentation of silicon needles within the mold induced by EMV treatment.