Effect of Plastic Deformation on the Corrosion Behavior of Super1Duplex Stainless Steel

The effect of plastic deformation of super duplex stainless steel on the subsequent corrosion 
behavior in 3.5% sodium chloride solution was investigated. Potentiodynamic corrosion measurements were 
conducted at temperature of 90°C. Deformation at levels of 8 and 16%plastic strain showed high intensity of 
deformation bands. The presence of such deformations was highly sensitive to corrosion attack in the tested 
environment. The results confirmed the significant effect of deformed surfaces, as the plastic deformation level 
increased the corrosion resistance of super duplex stainless steel decreased.