Tensile behavior of 6063/Al2o3 particulate metal matrix composites fabricated by investment casting process

The use of investment casting process has been studied to fabricate 6063/Al₂O₃ metal matrix composites. The tensile properties have been evaluated. The EDS report confirms the presence of Al₅Cu₂Mg₈Si₆, Al₄CuMg₅Si₄ and Mg₂Si compounds in the 6063/Al₂O₃ composites. The yield strength and fracture strength increase with increase in volume fraction of Al₂O₃, whereas ductility decreases. The fracture mode is ductile in 10% volume fraction composite and the brittle fracture is observed in 20% and 30% volume fraction composites.