Microstructure Study and Optimization of Hardness and Tensile Strength of AW۲۰۲۴/B۴Cp Reinforced Composites Through Linear Regression

The current research is focused on the production of AW۲۰۲۴/B۴C metal reinforced composite by using the liquid stir casting method. Ceramic particles armored composites are mainly used in engineering applications, which include aircraft, automotive, and marine fields. AW۲۰۲۴/B۴C composites are produced by changing wt.% of B۴Cp as ۱.۰۰%, ۳.۰۰% and ۵.۰۰%. The produced AW۲۰۲۴/B۴C composites are machined as per ASTM E۸-۱۶a, IS۱۵۰۰, and IS۷۷۳۹ standard test size and subjected to artificial ageing. The hardness and tensile strength of AW۲۰۲۴/B۴C composites were measured through a Brinell hardness tester and a universal testing machine, respectively. The microstructure of the prepared composite material was examined to determine the uniform distribution of reinforcement material. The highest hardness and tensile strength of AW۲۰۲۴/B۴C composites were measured and found to be ۸۴.۹۷ BHN and ۲۷۳.۸۲ N/mm۲ for AW۲۰۲۴/۵%B۴C with ۵ hrs. ageing duration. The results achieved reveal that both hardness as well as tensile strength increased by increasing the weight percentage of B۴C content. L۹ standard orthogonal display was espoused to investigate the best parameter and also to authenticate the experimental test results. Further, a fracture study was done through SEM images to determine the mode of fracture.

کلیدواژه ها:

AW۲۰۲۴ ، Orthogonal Array ، B۴C ، ANOVA ، Hardness