Study on Mechanical Properties of Silicon Carbide Particle Reinforced AA6061 Composite Produced by Stir Casting

Q3 Engineering

International Journal of Vehicle Structures and Systems Pub Date : 2022-12-22 DOI:10.4273/ijvss.14.6.16

N. Dilip Raja, M. Venkatasudhahar, S. Muthukumar

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Abstract

The purpose of the study is to make quantitative and qualitative analyses on the Metal Matrix Composite (MMC). The MMC comprises aluminum alloy AA6061 as the matrix element and 5%, 10% and 15% by weight of silicon carbide particulate (SiCp) as the reinforcement material, before and after heat treatment. This investigation compares the mechanical properties and metallurgical characteristics of the MMC with the base material AA6061. In the present investigation, stir casting method is used for preparing samples of MMC. The produced composites were subjected to heat treatment to enhance their hardness. The influence of the weight composition of the reinforcement particles on the mechanical properties of the MMC is analyzed quantitatively. The mechanical properties such as tensile strength, impact strength and hardness were measured for quantitative analysis, while scanning electron microscope is used for qualitative analysis. The temperature of the furnace and the hardening time during the heat treatment process control the hardness exhibited by the composite materials. The percentage composition of reinforcements in the composite materials influences their mechanical properties. Based on the results, optimal material has been suggested for a wide range of applications. The proposed investigation indicates that if the heat treatment increases, then the microhardness of the MMC increases by 13.86%, 18.45% and 30.19%, respectively for 5, 10, and 15% by weight SiCp. It is also observed that the maximum tensile strength of MMC is 329 MPa at 10 % by weight of SiCp. Compared to the base material, it is a 12.5% increase in its tensile strength. Increase in the percentage composition of SiCp to 15wt. % reduced the impact strength by 13%. The scanning microscopy reveals that MMC having 10% by weight of SiCp has a medium-size grain structure.

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搅拌铸造碳化硅颗粒增强AA6061复合材料力学性能研究

本研究的目的是对金属基复合材料(MMC)进行定量和定性分析。经热处理前后的MMC由铝合金AA6061为基体元素和5%、10%和15%重量的碳化硅颗粒(SiCp)为增强材料组成。本研究比较了MMC与母材AA6061的力学性能和冶金性能。本研究采用搅拌铸造法制备MMC样品。对所制备的复合材料进行热处理以提高其硬度。定量分析了增强颗粒的重量组成对复合材料力学性能的影响。通过测定拉伸强度、冲击强度、硬度等力学性能进行定量分析，并利用扫描电镜进行定性分析。热处理过程中的炉温和硬化时间控制着复合材料的硬度。复合材料中增强成分的百分比影响复合材料的力学性能。在此基础上，提出了具有广泛应用前景的最佳材料。结果表明，当SiCp重量为5%、10%和15%时，热处理强度增大，MMC的显微硬度分别提高13.86%、18.45%和30.19%。在SiCp质量比为10%时，MMC的最大抗拉强度为329 MPa。与基材相比，抗拉强度提高12.5%。SiCp的组成百分比增加到15wt。%降低了13%的冲击强度。扫描显微镜观察发现，SiCp质量分数为10%的MMC具有中等大小的晶粒结构。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Vehicle Structures and Systems Engineering-Mechanical Engineering

CiteScore

0.90

自引率

0.00%

发文量

期刊介绍： The International Journal of Vehicle Structures and Systems (IJVSS) is a quarterly journal and is published by MechAero Foundation for Technical Research and Education Excellence (MAFTREE), based in Chennai, India. MAFTREE is engaged in promoting the advancement of technical research and education in the field of mechanical, aerospace, automotive and its related branches of engineering, science, and technology. IJVSS disseminates high quality original research and review papers, case studies, technical notes and book reviews. All published papers in this journal will have undergone rigorous peer review. IJVSS was founded in 2009. IJVSS is available in Print (ISSN 0975-3060) and Online (ISSN 0975-3540) versions. The prime focus of the IJVSS is given to the subjects of modelling, analysis, design, simulation, optimization and testing of structures and systems of the following: 1. Automotive vehicle including scooter, auto, car, motor sport and racing vehicles, 2. Truck, trailer and heavy vehicles for road transport, 3. Rail, bus, tram, emerging transit and hybrid vehicle, 4. Terrain vehicle, armoured vehicle, construction vehicle and Unmanned Ground Vehicle, 5. Aircraft, launch vehicle, missile, airship, spacecraft, space exploration vehicle, 6. Unmanned Aerial Vehicle, Micro Aerial Vehicle, 7. Marine vehicle, ship and yachts and under water vehicles.