Microstructure, Intermetallic Phases, and Fractography of the Cast Al-5.8Zn-2.2Mg-2.5Cu Alloy by Controlled Diffusion Solidification

The cast specimens for this study were prepared with a final composition of Al-5.8Zn-2.2Mg-2.5Cu alloy by using a relatively new casting process that is also known as controlled diffusion solidification (CDS). In an earlier publication, evaluation of the uniaxial tensile properties of these castings was reported and discussed. In the present study, the effect of the CDS process was examined on the formation of secondary and intermetallic phases …