Characterization And Tribological Behaviour Of Aluminium Metal Matrix Composite
Journal Title: International Journal of engineering Research and Applications - Year 2018, Vol 8, Issue 9
Abstract
Stir casting process is an effective manufacturing technique for producing MMC. The extensively use reinforcing materials for the aluminum matrix composites are Titani diboride, aluminum oxide and graphite in the variety of particles. In this work, the effect of addition of TiB2 as secondary particles on the microstructure, mechanical and wear properties of the Al6061-TiB2 MMCs has been studied. Aluminum matrix composite has been prepared by adding 0, 3 wt. % TiB2 through Stir casting process. The wear rate of the composite have been conducted using a pin on disc configuration under normal loads of 10, 20 & 30 N. The tribological behaviour was evaluated at a sliding speed of 3.14 m/s and distance of 942 m. After the wear tests, the worn out surface of test specimens have been observed with Olympus inverted optical microscope to analyse the wear mechanisms. On the conduction of Microhardness tests to measure the microhardness number (VHN) of Al 6061-TiB2 MMCs by indenting the diamond indenter. Microstructures are observed by using Scanning electron microscopy and X-ray diffraction analysis.The Tribological properties are superior with the increasing of addition of TiB2 particles to the aluminum matrix. The mechanical properties are enhanced with increasing the addition of wt. % of TiB2 particles to the Al 6061 alloy.The images of scanning electron microscopy shows a uniform distribution of TiB2 particles in the aluminium metal matrix.
Authors and Affiliations
Jaya Prasad Vanam, Kumbha Narasimha Rao
Keywords
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- EP ID EP395167
- DOI 10.9790/9622-0809040611.
- Views 143
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