A Study on Characterization of Green Metal Matrix Composites Reinforced with Melon Shell Ash Particulates

Abstract

Composite materials can be used to reinforce agricultural waste in different engineering fields. Use of these wastes as reinforcement results in environmentally friendly, cost-effective product growth. In present work, melon shell ash (MSA) was used as a reinforcement; while Al7% of SiMg alloy was a metal matrix for the production of composite material. Different weight percentages of 0, 3, 6, 9 and 12 of MSA particles of size 30 μm was used to develop composite materials for investigation. X-Ray fluorescent (XRF) resolute the characterization of prepared MSA powder which revealed the presence of SiO2, K2O and Al2O3. Scanning electron micrographs (SEMs) have been investigated for the homogeneous dispersion of MSA particles in the developed materials. The hardness and tensile strength of material was improved from 47.9 VHN to 74 VHN and from 160 to 201 MPa respectively; with increase in the MSA contents from 0wt% to 12 wt%. Also, a decrease in impact energy from 18 to 12 J, ductility from 8.3 to 5.5 was observed with the increase in MSA contents. Wear resistance improved by increasing the content of MSA particles. Developed material can be used in the automotive industry where the material s properties can be changed to meet certain requirements.