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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 592-594Fabrication and Investigation on Properties of TiC...

Fabrication and Investigation on Properties of TiC Reinforced Al7075 Metal Matrix Composites

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Abstract:

Aluminium alloy (AA7075) is largely used in various fields of transport applications, including marine, automotive and aviation and aerospace due to their high strength-to-density ratio. The present work deals with the influence of TiC on the mechanical behavior of AA 7075 composites. TiC is particularly attractive as it offers high hardness and elastic modulus, low density, good wettability yet low chemical reactivity with aluminium melts. The aluminium metal matrix composites (AMMCs) are produced as AA 7075 matrix metal and TiC particulates of an average size of 2µm as reinforced particles through stir casting, Magnesium added to the melt to overcome the wetting problem between TiC and liquid AA7075 metal. AMMCs are produced in different %weight of TiC ranging between 2 to 10%.These composites are characterized with optical, SEM and EDS analysis in as-cast condition and T₆condition and hardness are predicted using macro vickers hardness tester. The test results showed increasing hardness of composites compared with matrix (AA7075) because of the presence of the increased reinforced material (TiC)

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Periodical:

Applied Mechanics and Materials (Volumes 592-594)

Pages:

349-353

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.592-594.349

Citation:

Cite this paper

Online since:

July 2014

Authors:

V. Rama Koteswara Rao*, N. Ramanaiah, M.M.M. Sarcar

Keywords:

AA7075, MMC, Stir Casting, TiC (Titanium Carbide)

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* - Corresponding Author

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