Recent Studies on the Fabrication of Magnesium Based Metal Matrix Nano-Composites by using Ultrasonic Stir Casting Technique-A Review

摘要

This paper presents the recent studies on the fabrication of magnesium based metal matrix nano-composites (MMMC) by using ultrasonic assisted stir casting technique. The pure metal and alloys, due to their limited mechanical properties are not suitable for various engineering applications. It has been observed that the addition of suitable reinforcements into metallic matrix improves the specific strength, ultimate tensile strength, porosity and wear properties as compared to the conventional and monolithic engineering materials for aerospace and automotive applications. The effects of ultrasonic vibrations and the resulting uniform dispersion of reinforcements on the mechanical and tribological properties of magnesium based MMCs are specifically highlighted in this paper.