Effect of Post-Processing Annealing on Microstructure, Mechanical Behavior and Wear Characteristics of Semisolid Thermomechanically Processed Al–Zn–Mg/3 wt.% Al2O3 Composite

In this research, the effect of annealing heat treatment on microstructure, mechanical properties and wear behavior an Al–Zn–Mg/3 wt.% Al2O3 composite that was previously thermomechanically processed (TMPed) in its semisolid temperature range investigated. The conducted at 400 ˚C for 15, 30, 45 60 min, respectively. results revealed led to better distribution alumina reinforcement particles. Also, it proved no substantial grain growth occurred which shows size stability TMPed composite. addition, owing reinforcements, microhardness values composites improved while compressive strength did not increase noticeably. test mode non-annealed sample adhesive whereas annealed sample, abrasive dominant.