EN
Al alloys find a wide spectrum of industrial applications due to their interesting physico-chemical and mechanical properties such as density, good appearance, corrosion resistance and density to strength ratio. Alloying elements in aluminum are aimed at improving its functional properties, especially durability. However, improved durability is not always associated with maintenance of good properties of passive layer responsible for corrosion properties of aluminum. In order to check its corrosion resistance Al-Mg alloys (5182) of commercially pure type - alloy 1100 have been examined. Pitting corrosion investigations of Al-Mg alloys in 0.5M NaCl have been performed by means of dynamic electrochemical impedance spectroscopy under linear potential change conditions.