ELECTROCHEMICAL BEHAVIOUR OF Al-Zn-Ga AND Al-In-Ga ALLOYS IN CHLORIDE MEDIA

D.O. FLAMINI; S.B. SAIDMAN

MATERIALS CHEMISTRY AND PHYSICS

ELSEVIER SCIENCE SA

Lugar: Amsterdam; Año: 2012 vol. 136 p. 103 - 111

0254-0584

The influence of Ga content on the electrochemical behaviour of Al-Zn-Ga and Al-In-Ga alloys in chloride acid and acetic acid media was studied. The presence of Ga in concentration greater than 2.5 wt.% causes an open circuit potential (OCP) displacement of Al-Zn-Ga alloys in chloride solution towards more negative values      (- 1.38 V(SCE)). The OCP for Al-In-Ga alloys in chloride solution varies between         - 1.62 and - 1.73 V(SCE). The anodic behaviour of these ternary alloys can be interpreted in terms of an amalgam mechanism.