MECHANICAL, MICROSTRUCTURE AND WEAR BEHAVIOUR OF LM25/SiC/MICA METAL MATRIX COMPOSITE FABRICATED BY SQUEEZE CASTING TECHNIQUE

Metal matrix composite (MMC) has a unique class of light weight advanced engineered materials which are developed to give high strength, improved hardness, tensile strength, good elongation and good resistance to wear and tear hence increases the durability. It has good machinability properties, so that lightweight materials can replace the heavy materials like cast iron in aerospace and automobile industry. The aim of this research to study the mechanical and microstructure properties of LM25 reinforced with SiC particles and coated with mica fabricated by squeeze casting technique. Wear loss and mechanical properties such as hardness, tensile strength, elongation and yield strength wear studied. Microstructure with EDS studied using scanning electron microscope. Results show that with increasing the percentage of mica along with 10% SiC the MMC properties get enhanced.