The Investigation of Effects of Mechanical Alloying Duration on Corrosion Behavior of Aluminum Composites Reinforced with Al2O3

In the study, the effects of mechanical alloying duration on corrosion behavior of powder metal aluminum composites reinforced with alumina (Al2O3) were investigated in saltwater medium. For composite materials production, reinforcement Al2O3 powders and base metal aluminum powders were applied one hours mixing or mechanical alloying for 2, 4, 6 and 10 hours. After pressing and sintering treatment of composite powders, electrochemical corrosion tests were applied in saltwater solution (3.5 wt. % NaCl) by potentiodynamic methods. According to corrosion test results, corrosion resistance of composite materials was decreased with increasing of mechanical alloying duration