ABSTRACT
This study investigates the fatigue behavior and mechanical properties of welded joints of magnesium alloy MA2-1M produced by Friction Stir Welding (FSW) and Tungsten Inert Gas (TIG) welding. The study concludes that while TIG-welded joints with reinforcement demonstrated the highest ultimate tensile strength, approximately 96% of the base material’s strength, compared to FSW joints. But FSW joints provides more uniform and reliable welds with superior fatigue performance with only a 7% reduction compared to the base metal at 106 cycles. These findings contribute to the optimization of welding techniques for critical magnesium alloy structures, particularly in high-performance applications such as aerospace and automotive industries.
