Study of the effect of environmental and friendly corrosion inhibitors on magnesium alloy

Magnesium alloy was one of the most commonly used light metal material,and adding corrosion inhibitors to corrosion medium was an effective method to improve the corrosion resistance of magnesium alloy.In the view of environment protection,we study the corrosion inhibition of four inhibitors for AZ91D magnesium alloy in 3.5wt% NaCl by electrochemical polarization,impedance technology.According to the properties of the four inhibitors,strengthen the adsorption of the four inhibitors was achieved through adding pefloxacin mesylate.Finally,these environmental friendly corrosion inhibitors have a certain degree inhibition effect,and joining pefloxacin mesylate can further enhance the inhibition effect to AZ91D magnesium alloy in 3.5wt% NaCl.