Fabrication and Investigation of Mechanical Properties for Magnesium Alloys by Stir Casting

Abstract

Magnesium alloys have numerous applications due to their high strength-to-weight ratio in comparison to aluminium alloys. Although these alloys cannot be used at high temperatures due to their susceptibility to burning, they play a crucial role in the production of electric vehicles, particularly in components such as wheels, the motor casing, frame, and body. The utilization of magnesium alloys in these parts reduces the weight of electric vehicles. In this study, we conducted four castings of magnesium alloys (Al40Z1, Mg60Al40, Al25Z1, Al15Z1) using stir casting equipment to investigate their mechanical properties. We conducted a series of tests including wear testing, Vickers micro hardness testing, Porosity and density testing. We also examined the microstructure of the alloys using an optical microscope. Our results revealed that the magnesium alloys became more brittle with an increase in aluminium percentage, and the hardness was higher for alloys with a higher percentage of aluminium. We also found that Al5Z1 had a lower density than the other castings. This study contributes to the understanding of the properties of magnesium alloys and provides valuable information for the development of new electric vehicle components.

Cite as

T. Subba Reddy, B. Srinu, S.K. Ameer basha, T. Dhanesh Babu, & K. Leela Siva Krishna. (2023). Fabrication and Investigation of Mechanical Properties for Magnesium Alloys by Stir Casting. Recent Trends in Automation and Automobile Engineering, 6(1), 1–10. https://doi.org/10.5281/zenodo.7728450