The corrosion behaviour of A413/SiC composites with different SiC contents (5, 10, and 15 wt.%) was evaluated through electrochemical techniques in 3.5 wt.% NaCl solution. For this purpose, composites were produced by the mechanical alloying technique. In addition to this, X-ray diffraction and by Scanning electronic microscope studies were performed. It was found that the addition of SiC increased both density and porosity. Electrochemical tests showed that the corrosion resistance of unreinforced A413 alloy was improved with the addition of 5% SiC but the addition of either 10 or 15 % SiC was detrimental. The corrosion products film developed on top of unreinforced A413 alloy and composite containing 5 % SiC consisted basically of protective Al2O3, alumina layer, whereas that formed on top of composites containing either 10 or 15 % SiC contained less Al as well as Fe and Cr making them less protective.