Microstructure and Properties of Hot Extruded Al-TiO₂ Powder Metallurgic Composites

Abstract

Aluminium metal matrix composites reinforced with TiO2 were synthesized using powder metallurgy route. The compositions such as Al-2.5%TiO2, Al-5%TiO2, Al-7.5%TiO2 and Al-10%TiO2 were milled using ball mill for 1 hour. The green compacts were prepared using 400 kN hydraulic press. The sintering was done by using electric muffle furnace at a temperature of 550°C for 1 hour. Hot extrusion was carried out for the sintered composite samples with suitable punch and die. The mechanical properties such as ultimate tensile strength, yield strength, percentage elongation and hardness have been studied for the hot extruded samples. The microstructures of the extruded composites were analyzed using optical microscope and reported. The high compressive strength was obtained for the Al-5%TiO2 composite.

Microstructure and Mechanical Behavior of Hot Extruded Aluminum/Tin-Bismuth Composites Produced by Powder Metallurgy

“…These results are consistent with similar studies using BN and B4C particles as reinforcement [17,20]. In Table 1, the developed Al-BiSn composites are also compared with the already published Al-based composites [15,21,[44][45][46][47].…”

Investigate the Mechanical Properties of an Al6065 alloybased Hybrid Metal Matrix Composites

“…Figure 3c shows that the hardness number for biocomposite is now greater whenever a 30% protective layer is used, and therefore, increasing the carbon fibres results in something like a drop in the hardness number. Figure 2 demonstrated the above findings [10].…”

Structural and mechanical properties of CeO2 reinforced Al matrix nanocomposites

“…As per the literature, Al has already been successfully reinforced with ceramic oxide nanoparticles such as TiO2, Al2O3 and SiO2 to study the mechanical behavior of the composite materials [6][7][8]. And the results obtained so far are very encouraging which leads to the further study of with the new systems.…”