ISSN : 2663-2187

INFLUENCE OF MECHANICAL PROPERTIES AND MICROSTRUCTURE OF THE ALUMINIUM5083 WITH NANO SILICON CARBIDE PARTICLES(50-60nm) CASTED BY STIR CASTING USING WITH AND WITHOUT VIBRATIONS

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Sudhakar Uppada
ยป doi: 10.33472/AFJBS.6.2.2024.1265-1278

Abstract

This study aims to investigate the influence of mechanical vibration of the mold on the mechanical properties of Al5083. Despite its importance, there is currently a lack of literature on this specific topic. To fill this gap, we will conduct a series of tests. Al-Si based alloys are the most important non-ferrous alloys. These alloys were enormously used in various sectors like marine, aerospace and automobile industries because of their excellent mechanical properties such as corrosion resistance, low density, low coefficient of thermal expansion, excellent wear and good strength. These are employed in settings where a high level of wear resistance combined with light weight is necessary. However, the dendritic arm spacing of the silicon particles, in particular, and the degree of grain refinement, determine all of these alloys' performance. These applications necessitate researching methods to enhance these alloys' mechanical characteristics and grain structure through SEM analysis. Consequently, by applying mechanical mold vibrations during the casting process, this review will provide an improvement in the mechanical properties and grain structure of the alloy. The alloy will be molten after the casting process is complete, and during the solidification process, it will be subjected to mechanical vibration. Different frequencies between 120 and 180 Hz will be applied to achieve the right dendritic arm spacing, grain size, and reduction of internal defects. Additionally, test results show that the stir casting process enhances the mechanical and physical properties of aluminum alloys. Aluminum 5083 is an alloy consisting of magnesium, aluminum, and trace amounts of chromium and manganese. The following is the 5083 aluminum alloy's chemical composition: Aluminum equilibrium Chromium: maximum 0.05โ€“0.25% Copper: maximum 0.1% Iron: up to 0.4% Magnesium: 4.09โ€“4.9 percent Manganese content: 0.4โ€“1.0%Silicon: maximum 0.4% Titanium: 0.15% max Zinc: 0.25% max

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