Sharma S and Rana RS
Composites with aluminium alloy matrix and ceramic reinforcements are popular candidates in automotive, aerospace, defense and other industries because of their high strength-toweight ratio, stiffness, impact strength, wear resistance, etc. In the present study AA 5083/Nano SiC composite were fabricated by stir casting. A 2-level Full Factorial design of experiments (DOE) was used to study the influence of process parameters like casting temperature, stirrer speed, and weight percent of reinforcement on hardness of composites. Mathematical model was developed to investigate which parameters significantly affect the hardness of composites. The effect of parameters on the response and adequacy of hardness model developed were tested by employing ANOVA and Fisher’s F-test. This model can be used to select the optimum process parameters for obtaining the composites hardness within the range of experimental frame work.
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