Kumar Vikas, Singh Shailesh, International Journal of Advance Research, Ideas and Innovations in Technology. © 2017, www.IJARIIT.com All Rights Reserved Page | 54 ISSN: 2454-132X Impact Factor: 4.295 (Volume3, Issue6) Available online at: https://www.ijariit.com Fabrication and Evaluation of Mechanical Properties of AL6061- 4%B 4 C-4%CU Based Composite Experimentally Vikas Kumar M.Tech Scholar Mechanical Engineering Department IEC College of Engineering & Technology, Greater Noida 012vikaskumar@gmail.com Shailesh Singh Assistant Professor Mechanical Engineering Department IEC College of Engineering & Technology, Greater Noida mechshaileshsingh@gmail.com Abstract – Metal matrix composite are widely used in automotive industries because they exhibits different mechanical properties such as high strength and good wear resistance, high specific stiffness, low weight and high hardness etc. Due to these properties metal matrix composite with particulate reinforcement and fabricating method has become one of the most important areas of research. The work is mainly focus on fabrication of Al 6061 reinforced with 4% B4C (particle size 100 mesh) & 4% Cu and method used for fabrication is stir casting method. Tensile strength, hardness, impact strength, microstructure of fabricated composite are used to characterize it. By addition of B4C & Cu tensile strength and hardness of the fabricated composite has increased and slightly decreased in impact strength. Scanning Electron microscopy is used to confirm the microstructure and uniform distribution of B4C & Cu particles in metal matrix composite. The value of tensile strength increase up to 20% and hardness increase upto15% due to addition of B4C & Cu paritcles.The physical and mechanical properties of composite are improved so it can be used for automotive industrial applications. Key Words- Stir Casting, Tensile Strength, Impact Strength, Metal Matrix Composite, and Hardness, Microstructure 1 INTRODUCTION When metal matrix composite (MMC’s) compared with unreinforced metal they show high strength ,hardness ,impact strength as well as wear and fatigue strength at low and high temperatures so they are highly utilized designing of ground transportations vehicles, aircraft etc. Use of pure aluminum in designing industries is limited because it has poor mechanical properties and poor tribological properties also. The role played by the aluminum is vital in development of metal matrix composite reinforced with a B4C,SiC,TiC,Al2O3,TiC etc. they are commonly known as aluminum metal matrix composite (AMC’s). Composition, mechanical behavior, response to heat treatment etc. are some common aspect to be considered corresponding to the metal matrix composite. Properties such as low weight, good corrosion resistance, and good mechanical properties such as tensile strength, hardness, toughness and impact resistance, fatigue etc. made aluminum use as matrix material. Some application require high melting point so aluminum also exhibits this property also .Boron carbide use in reinforcement due to it has good corrosion resistance , good thermal resistance, high strength, easily available, and good culpability with aluminum matrix. Boron carbide powder has very high cost and poor wetting characteristics so research work has been not enough due to these drawbacks. Boron carbide generally used for manufacturing of armor tanks, bullets proof vests etc. Hence, when boron carbide used with low cost routing technique is highly utilized for research purposes. Instead of using Sic carbide, the use of Cu the ductility of AMC’s not reduce and it is low brittle as compare to the use of Sic Rajneesh Kumar Verma, Lucky Agarwal and D.S. Awana found that when Al 6061 reinforced with cu and Sic fabricated by stir casting method ultimate tensile strength increase with increase in weight % of cu and hardness also increased and due to addition on SiC, the tensile strength and corrosion resistance improved significantly when they compared with pure aluminum. Shobhit jain found that when aluminum reinforced with boron carbide and cu manufactured by powder metallurgical the tensile strength increase up to 10% and there is a significant in increase in hardness and compressive strength also. When the amount of