Steamside Oxidation Issues in Current Coal-Fired Boilers

To assist with understanding corrosion issues in current coal-fired boilers, this project is addressing steamside corrosion issues in membrane panels and superheater and reheater tubes. Initial tasks focus on the influence of water chemistry and pressure on steamside oxidation of structural alloys with and without surface modifications. A mechanistic understanding of the influence of water chemistry in terms of oxygen content and the presence of film-forming products on corrosion processes would significantly contribute to develop accurate lifetime prediction models for current and potentially higher-performance alloys for use in coal-fired power systems. These goals will be accomplished by evaluating the performance of commercial alloys in controlled laboratory experiments to simulate advanced fossil boiler conditions to provide parameters for a comprehensive lifetime model.