DEVELOPMENT OF AL-BASED METAL MATRIX COMPOSITES

This study aims to formulate and develop hybrid particle reinforced Al-metal matrix composites using stir casting method a novel fabrication process in Bangladesh to fabricate metal matrix composite. Also followed by investigation of its the physical mechanical morphological and machinability characteristics of the developed metal matrix composites. Three unique compositions of composites have been obtained by varying the wt. % amount of carbon nanotube alumina and silicon carbide particulate reinforcements respectively 1% 2.5% and 2.5%. Various mechanical properties essentially the tensile strength flexural strength hardness impact resistance; and physical properties like porosity and density were tested; and a morphological and machinability study has been carried out for investigating the performance of the newly developed composites. The study showed that there was an 128.57% increment of tensile strength an 7.1349% increment of hardness an 45% increment of impact resistance and a 0.8301% reduction of density by adding the particulate reinforcements in aluminum metal matrix composite.