Comparison of inhibition properties of CeO2 and La2O3 thinnfilms synthesized by r.f. magnetron sputtring on different aluminium alloys

Abstract

Aluminium and its alloys are widely used in engineering applications because of their low density, favorable mechanical properties, good srface finish and relatively good corrosion resistance. Research efforts in the aeronautical industry have focused on the study of Al-Cu and Al-Zn alloys like the AA7075, AA5083,AA6061, AA8090. The electrochemical behavior of Al and its alloys have attracted the attention of many researches; due to the natural oxide film on aluminum does not offer sufficient protection against aggresive anions.