Experimental Analysis of Mechanical Properties on Hybrid metal Matrix Composite (AA7175/ B4C/SiC)

Abstract

Hybrid composites are far more superior to existing conventional composites. Among hybrid composites, hybrid aluminum based metal matrix composite plays a pivotal role in the present time. HAMCs have key properties such as less weight-to-strength ratio, high wear & temperature resistance, high hardness, good stiffness, etc. which makes them extremely important in advanced industrial applications, especially in modern sectors such as Automotive, Aerospace, Defense etc. The demand for HAMCs is steeply rising so a thorough understanding of HAMCs becomes important. In this research, AA7175 has been used with SiC, B4C & Graphite as reinforcements in different amounts (3, 6, 9, 12 respectively) of weight percent. Mechanical properties of HAMCs i.e., hardness, tensile strength & percentage elongation have been analyzed. Experimental results show that tensile strength and hardness increase with the increment of reinforcement quantity but percentage elongation decreases. The hardness and tensile strength improved up to 12% of weight of SiC, B4C, and Graphite particles. Few experiments have been done using AA7175/SiC, B4C, and Gr because of which this archive study is unique. This study's methodology could be very helpful for producing high-strength components utilizing Stir Casting, which is a relatively inexpensive casting technique.