ABSTRACT
In the present article, aluminum and its heat treatments were expressed. Also it was investigated that the influence of quenching type after solutizing heat treatment of cast Al-8.88Si-3.38 Cu on the microstructure has been reported. Alloys were prepared by controlled melting and casting. All the alloys were solutionized at 525°C for 4 h followed by water quenching at 65°C for 1, 15, 30, 60, and 90 min, respectively, and aged at 175°C for 4 h. Then they were cooled at room temperature. It was performed SEM–EDX analysis and X-ray analysis. From the analysis, it was determined Al2Cu and Al7FeCu2 phases. It was determined that those phases reinforce the microstructure. As a result, the type of quenching after solution treatment is very important for aluminum alloys.
