Characterization of chloride-induced high temperature corrosion in wet condition of austenitic stainless steel

Abstract

High temperature corrosion of austenitic stainless steel in wet hydrogen chloride environment was characterized and investigated by optical microscopy and X-Ray microanalysis. The hydrogen chloride was diluted in water and boiled to generate stream feeding into ceramic tube furnace which set up at 900 de-gree Celsius. Optical microscopy and X-Ray Microanalysis are primarily selected for characterization tech-niques. The corrosion product generated on surface mostly composed of ferrous oxides. There is not found any Ni on the surface so it still promoted austenitic matrix of stainless steel in corrosive environment.