Taguchi Based Gray Relational Analysis of Production Parameters of Al7075/B4C/GNP's Hybrid Composites

In this study, metal matrix hybrid composites obtained by adding B4C and graphene nanoplatelets (GNPs) powders as reinforcement elements to Al7075 were produced powder metallurgy (P/M) method. Mixture prepared supplementing with different weight ratios of (2-5-10%) GNPs (0.5%) are compressed at room temperature pressing pressures (600-700-800 MPa) then temperatures (500-550- 600C) was sintered in vacuum atmosphere samples accordance ASTM G99 standard. Density hardness analyzes carried out depending on the changing production parameters composites. It determined that pressure had a direct effect condensation rate highest density value 2.6764 g/cm3 Al7075+5% B4C+0.5% sample pressed under 800MPa pressure. The samples, other hand, generally increased due increasing amount element, while it also increase sintering temperature.