Synthesis and mechanical characterization of ALFA composites

Shivaprakash, Y M and Sreenivasa Prasad, K V and Basavaraj, Yadavalli (2011) Synthesis and mechanical characterization of ALFA composites. International Journal of Engineering and Social Science, 1 (2). pp. 115-126. ISSN 2249- 9482

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Abstract

ALuminum FlyAsh (ALFA) composites are light weight, high strength composites known for their good wear resistance properties. In the present investigation ALFA composites are synthesized by varying the amount of FlyAsh reinforcement from 2.5% wt to 7.5% wt in the Aluminum Alloy matrix by stir casting method. The microstructure and phases of the alloy particulate composites were examined and observations showed a uniform distribution of the FlyAsh in the matrix with hard and fine precipitates of ceramic deposited along the grain boundaries. The as cast composites are tested for tensile strength and hardness and obtained properties are correlated with microstructure. Observation of the test results show that the tensile strength and hardness of these composites increases with increase in amount of FlyAsh in the Aluminum matrix. With 7.5% wt of FlyAsh reinforcement in the matrix, the tensile strength and hardness values are increased by 7% and 32% respectively over the unreinforced Aluminum Alloy.

Item Type: Article
Uncontrolled Keywords: Metal Matrix Composite, Stir Casting, ALFA Composites, AA 2024, Flyash
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 09 Nov 2013 05:45
Last Modified: 09 Nov 2013 05:45
URI: http://eprints.manipal.edu/id/eprint/137681

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