TITLE:
Redox Reactions Values of AlZn + Ag Eutectoid Chemical Composition
AUTHORS:
Socorro Valdez, Jorge A. Ascencio, Angélica Meneses, Sid R. Casolco
KEYWORDS:
AlZn Alloys, Ag Additions, Polarization Curve, AgZn3 Precipitate
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.2 No.8,
August
11,
2014
ABSTRACT:
The effect of IB element additions [Ag] on the corrosion behavior of AlZn alloy has been investigated. The potentiodynamic polarization curves revealed that the corrosion behavior of SSAl, SSZn and AgZn3 phases was significantly influenced by IB element content. The electrochemical investigations showed that the corrosion rate increased with the IB-element additions. Furthermore, it was also evidenced the formation of a passive layer for the highest Ag content alloys; the passivity of this layer could be broken due to the presence of the intermetallic compound (IMCs) AgZn3.