Corrosion behavior of the AlSi5Cu2Mg alloy with varying Zr addition
Date
2023
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of Žilina
Lang
en
Abstract
The aim of this paper was to analyze the impact of varying zirconium additions (0.05; 0.10;
0.15 and 0.20 wt. % Zr) on corrosion behavior of the AlSi5Cu2Mg aluminum alloy. Potentiodynamic
polarization corrosion tests in 3.5 % NaCl solution demonstrated that the addition of Zr improved the
thermodynamic corrosion stability of the AlSi5Cu2Mg alloy by shifting the corrosion potential to more
positive values for all as-cast samples. The addition of Zr to the as-cast alloys also improved corrosion
kinetics by lowering the corrosion current density.
Description
Keywords
corrosion, AlSi5Cu2Mg, zirconium