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Title: Fabrication and Machining Studies on Aluminium Hybrid Composite
Guide(s): K. Balamurugan
Keywords: Engineering and Technology
Engineering Mechanical
University: Vignans Foundation for Science Technology and Research
Completed Date: 2021
Abstract: To improve the material properties for different technical applications, reinforcements have been introduced into the base materials to form a composite. Ceramic particles as reinforcement have high stiffness, superior hardness and a matrix such as aluminums has high toughness and ductility. Al-MMC has been replaced by conventional alloys in several engineering disciplines due to light weight, wear resistant, thermal stability and superior isotropic mechanical properties. Certain reinforcement particles commonly used in Al-MMC are carbides, oxides, nitrides, borides, intermetalic compounds, graphite, mica and quartz, etc. Among that carbide reinforced Al-MMC used to manufacture automotive and aerospace components. However, these reinforcements are costly therefore, their use was limited. Ceramic particles could be replaced with agro-industrial by-products lowering the cost of the composite and improve blooming applications. newlineAl6061 alloy strengthened with particulate Rice Husk Ash(RHA) and TiC were mixed in equal percentages (12%, 9%, 6% and 3%) via liquid metallurgy fabricated aluminium hybrid composite and experimentally investigated. The metallurgical study reveals that 3% composite has shown uniform dispersion of reinforcement particulates. An increase in weight percent of RHA in the Al-TiC composite observed non-uniform dispersion result in decelerate mechanical properties. Subsequent experiments 3% of RHA was fixed and TiC % in the Al6061 alloy was varied. The development of a low-cost reinforced aluminium matrix has been one of the main innovations in the materials industry in recent decades. A lower cost and density of SiO2-rich waste is available and valued as a surrogate for relatively higher cost reinforcements.RHA is a major by-product of agriculture waste. Approximately 90 to 95% of SiO2 contain RHA. During the heat treatment process, RHA is converted into crystobalite, a crystalline form of SiO2. Once again, under controlled flammable conditions, which are converted to SiO2. newline
Pagination: 172
Appears in Departments:Department of Mechanical Engineering

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