Abstract The efficiency of conventional induction motors is constrained by the substantial core losses associated with silicon steel, prompting the investigation of alternative magnetic materials for their fabrication. This study aims to enhance the performance of a low-frequency (50 Hz) induction motor by substituting the traditional M19 stator core with Metglas 2605SA1, an amorphous alloy known for its minimal hysteresis and eddy current losses. The study was conducted using ANSYS Motor-CAD simulations under identical geometric and electrical conditions to ensure fair comparison. The key performance indicators, namely efficiency, losses, and thermal stability, were analysed alongside the lifecycle cost and environmental impact. The results indicate that the Metglas-based motor achieved a system efficiency of 85.46 %, compared to 80.71 % for M19, with a total loss reduction of 21.15 % and a core-loss reduction of 62 % (110.3 W → 41.89 W). The peak stator temperature decreased by 17 °C, which enhanced the insulation life and reduced the cooling requirements. Despite the higher initial material cost, the Metglas motor offers long-term economic and environmental benefits, including lower operating costs and reduced CO 2 emissions. These findings underscore the industrial significance of amorphous alloys in realising next-generation, high-efficiency, and sustainable motors.
Mohajon et al. (Fri,) studied this question.