Abstract
Due to technological advancements, nanocomposites are being considered as one of the candidate materials for manufacturing wide variety of automobile components such as brake rotors, pistons, cylinder liners and transmission housings etc. Due to lower manufacturing cost and simplicity, stir casting is the most common method to produce the nanocomposites. The final properties of nanocomposites produced through stir casting primarily depend upon the uniform distribution of nanoparticles, but then influenced by stir cast processing parameters. The influence of stir casting parameters such as stirrer blade angle (90°, 70° and 50°), rotating speed (400 rpm, 600 rpm and 800 rpm) on the better distribution of nanoparticles (2% by wt.) in the molten aluminium alloy matrix was investigated using finite element analysis. These casting parameters were also optimized to provide a fluid flow behavior that results in the effective distribution of nanoparticles. The validation of numerical results was done by manufacturing a nanocomposite at these optimized processing conditions. The microstructural evaluation of the developed nanocomposite revealed the uniform distribution of nanoparticles in the base matrix.
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