Evaluation of mechanical behaviour and tensile failure analysis of 8 wt.% of nano B 4 C particles reinforced Al2214 alloy nano composites

The microstructure and mechanical properties of Al2214-8 wt.% of 500 nm sized B 4 C particles reinforced composites were studied in this study. By using a liquid metallurgical process, composites containing 8 wt.% of B 4 C in Al2214 alloy were created. To increase the wettability and dispersion of the composites, fortification particles were warmed to 300 °C and then added in groups of two into the vortex of liquid Al2214 alloy compound. ASTM standards were used to analyse the mechanical characteristics of Al2214 alloy and Al2214-8 wt.% of B 4 C composites. The distribution and presence of nano B 4 C particles in the Al2214 alloy matrix were confirmed by microstructural analysis using SEM and EDS. XRD patterns indicated the presence of the B 4 C phases in Al2214 alloy composites. The addition of 8 wt.% of B 4 C particles to Al2214 alloy improved its hardness, ultimate, yield, and compression strength. Furthermore, the presence of B 4 C particles reduced the ductility of the Al2214 alloy. The tested materials were subjected to tensile fractography to determine the various fracture mechanisms.