Electrochemical characteristics of magnesium alloy AZ31 in Hank's solution

Abstract

The electrochemical characteristics of magnesium alloy AZ31 in simulated body fluid were investigated. The emphasis of the present study was to explore the impact of two alloy processing/production techniques, namely, die casting and extrusion. Electrochemical impedance spectroscopy in combination with immersion tests was used for the determination of electrochemical characteristics (from 5 min to 504 h). Results were also supplemented by light microscopy of attacked surfaces. The work reveals that a finer microstructure of AZ31 leads to a more uniform corrosion process in physiological solution.