Intergranular corrosion is typical from 2xxx series aluminium alloys. In this work, this property has been evaluated in 2014 aluminium matrix composites. The base alloy was manufactured through mechanical alloying, and reinforced with Ni3Al particles of two types (manufactured through mechanical alloying and through rapid solidification). Corrosion tests were carried following ASTM G110 standard. Corrosion was evaluated by scanning electron microscopy and energy dispersive X-ray analysis. It has been studied the influence that the different kinds of intermetallic and T6 heat treatment have on the corrosion resistance of 2014 aluminium alloy. Results show that, in all cases, intermetallics highly improve the corrosion resistance of base aluminium alloy, and that T6 heat treatment is also favourable.