Aluminium Metal Matrix Composites for Tribological Applications
Evaluation of Aluminium Metal Matrix Composite for Tribological Applications
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In general, Aluminium alloy components are light in weight and widely used in general engineering applications. But, they lack in good resistance to wear, particularly under poor, partial or boundary lubricated conditions. With solid lubricant particles dispersed in the matrix of Aluminium alloy, this material exhibits good potential for resistance to wear and consequently, becomes more suitable for tribological applications. Aluminum based Metal Matrix composites (MMCs) have become a very valuable addition to the field of newer materials for high performance tribological applications. Alumini...
In general, Aluminium alloy components are light in weight and widely used in general engineering applications. But, they lack in good resistance to wear, particularly under poor, partial or boundary lubricated conditions. With solid lubricant particles dispersed in the matrix of Aluminium alloy, this material exhibits good potential for resistance to wear and consequently, becomes more suitable for tribological applications. Aluminum based Metal Matrix composites (MMCs) have become a very valuable addition to the field of newer materials for high performance tribological applications. Aluminium based composites are being increasingly used in automobiles, aerospace, marine and mineral processing industries. In this work, the casting was done by the liquid casting technique. The particulates were mechanically stirred and well distributed over the liquid metal, before casting and solidification. Thus, this research work aims to identify the ability of AA 6061 and AA 7075 to acquireresistance to wear, when they were cast as composites with graphite, Al2O3 and B4C as reinforcements. In all the investigations, the wear tests were conducted on pin-on-disc apparatus at room temperature.
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