PREPARATION AND DAMPING BEHAVIOR OF A356.2/RHA COMPOSITES
Keywords:
Damping Behavior, RHA Composites, A356.2, Dynamic Mechanical AnalyzerAbstract
In an attempt to investigate the possibility of enhancing damping characteristics of structural metals, Rice Husk Ash (RHA) was reinforced with A356.2 alloy using Vortex method. Using this method 4%, 6% and 8% weight percent RHA composites were fabricated. Dynamic Mechanical Analyzer (DMA) is used to study the damping behavior of the as received, A356.2/RHA composites in the frequency ranging from 1Hz to 25Hz at room temperature. The results show that composites exhibit higher damping capacities than the unreinforced alloy. The related mechanisms are also discussed.
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