Comparison of Al2O3-Reinforced Sintered and Extruded AA2014 Nano-Hybrid Composite Particle Size Effects on Mechanical and Metallurgical Characteristics

Abstract

Researchers are interested in developing new nano-composite materials because aluminium metal matrix composites (AMCs) have unique properties. An essential goal of this research is to compare the effects on the AA2014 hybrid nano-composite of varying weight percentages of Al2O3 particles (micro-size 30–60 nm and nano-size (60–90 nm)). To fully characterize the composites, mechanical and metallurgical tests are performed on them. To perform a comparative analysis, alumina-reinforced particles weight percentages (1–10%) are varied. Mechanical characteristics such as yield strength-280 MPa and ultimate tensile strength-290 MPa significantly improve the AA2014 hybrid composite third sample compared to the other models. In the sintered samples, the interfacial bonding between AA2014 and Al2O3 was as small as possible (90 Vickers hardness number). Extruded composite in the third sample (330 MPa) has 1.157 times the compressive strength of a sintered sample. The analysis of the AA2014 hybrid composite identifies aggregation and segregation of alumina-reinforced nanoparticles.