Electrochemical Properties of Super Austenite Stainless Steel with Temperature in a Green Death Solution

In this investigation, potentiodynamic polarization experiments were conducted on UNS S31603 and N08367 in a modified green death solution, which simulates the environment of desulfurization device (scrubber), using temperature as variable. A Tafel analysis showed that corrosion current density at highest (90 °C) was approximately 4.5 times higher than N83067. surface scanning electron microscope revealed pitting intergranular occurred simultaneously S31603, whereas N83067 exhibited stronger tendency toward corrosion. After electrochemical experiments, rates according to maximum damage depth compared with density; relationships between two values expressed α values. The those indicating local rate higher.