Corrosion Research on Different Types of Nickel-Base Alloy and Stainless Steel in A Wastewater under the Condition of Anaerobic Subcritical

In supercritical water oxidation (SCWO) system, its main equipment and piping materials are nickel-based alloys and stainless steels. But generally in the temperature transition region between subcritical and super critical, metal corrosion is most serious. According to the characteristics of the integrated water sample, the aim of the present article is to study corrosion morphology and corrosion rate of incoloy825, incoloy800, inconel600, duplex stainless steel2205, stainless steel 304, stainless steel 316 under the absence of oxygen, 350 degrees C, 25MPa conditions, at the same time the corrosion of each material is analyzed. Finally, 800 are selected as engineering application material of the waste water in the subcritical region.