Ten grams of button-shaped samples of three different compositions Cu₈₂Al₆Ag₁₂, Cu₈₁Al₆Ag_13, and Cu₈₀Al₆Ag₁₄ were developed by vacuum arc melting technique followed by homogenization in three-zone tube furnaces for 72 hours at 850^oC. Metallography was done to study the microstructure and mechanical properties of these alloys. The microstructures indicate the presence of alpha and beta phases in all three compositions. X-ray diffraction was performed to identify the phases and the crystal structure was found to be FCC (Face centered cubic). The results of mechanical properties indicate that with the increase in the silver content, there is an increase in tensile strength and hardness values and a decrease in ductility.   

Keywords— Microstructure; Metallography; Microscopy; X Ray Diffraction; Heat treatment.