IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-ISSN: 2278-1684,p-ISSN: 2320-334X, Volume 12, Issue 5 Ver. IV (Sep. - Oct. 2015), PP 108-122 www.iosrjournals.org DOI: 10.9790/1684-1254108122 www.iosrjournals.org 108 | Page Evaluation of Mechanical Properties of AL 2024 Based Hybrid Metal Composites Preetam Kulkarni Department of Mechanical Engineering, University Visvesvaraya College of Engineering, India Abstract: The use of hybrid composite materials is very attractive because they have outstanding stiffness, strength and light-weight. An additional advantage of using hybrid composites is that their stiffness and strength can be tailored to specific design loads. Metal Matrix Composites are a broad family of materials aimed at achieving an enhanced combination of properties. While the matrix can be of any metal or alloy, most interest has been shown in the lighter structural metal cases. Improvement in the mechanical properties has been the primary objective. Much of the progress in the field of MMCs is closely linked to developments in reinforcements for incorporation in MMCs. However, the orientation of this research is towards the fabrication and testing of Aluminium-E-Glass-Flyash Composites. Aluminium alloy (2024) is the matrix metal used in the present investigation. The Test specimen are prepared as per ASTM standards size by turning and facing operations to conduct Tensile and Compression test. The specimens are tested for tensile and compression strength as per ASTM standard E8-82 and E9 respectively using Universal Testing Machine. It is observed that the MMC obtained has got better tensile and compression strength when compared to AL 2024 alone. Keywords: AL 2024, Flyash, E-Glass, Hybrid Metal Matrix Composite, Mechanical Properties. I. Introduction Many of the engineering applications in today's world require materials with unusual combination of properties that cannot be met by the conventional metal alloys, ceramics or polymers. This is especially true for the materials that are needed in Aerospace and Transportation Industries. Often, materials having high strength have relatively high density, also increasing the strength or stiffness results in a decrease in impact strength. Engineers around the world have always been in search of better combination of properties in materials. A new class of materials, called "composite materials" has answered to this search to great extent. Composite materials are those which are created artificially by combining two or more materials which usually have dissimilar characteristics. The constituents of a composite material can be generally identified macroscopically. This is in contrast to usual metallic alloys, whose phases can be identified only under higher magnification microscopic examination. In the present study mechanical tests such as Tensile and Compression are conducted as per ASTM (American Society for Testing and Materials) Standards. 1.1) Composite Materials Composite materials (also called composition materials or shortened to composites) are materials made from two or more constituent materials with significantly different physical or chemical properties, that when combined, produce a material with characteristics different from the individual components. The individual components remain separate and distinct within the finished structure. Typical engineered composite materials include: 1. Composite building materials such as cements, concrete 2. Reinforced plastics such as fiber-reinforced polymer 3. Metal Composites 4. Ceramic Composites (composite ceramic and metal matrices) Composite materials are generally used for buildings, bridges and structures such as boat hulls, swimming pool panels, race car bodies, shower stalls, bathtubs, and storage tanks, imitation granite and cultured marble sinks and countertops. The most advanced examples perform routinely on spacecraft in demanding environments.