Effect of Tensile Stress on Corrosion and Carburization Behavior of Ni-base Alloy in High Temperature Supercritical-CO_2 Environment

摘要

The supercritical-carbon dioxide (S-CO_2) Brayton cycle is a cross-cutting power conversion system being proposed for a broad range of advanced energy applications such as nuclear, fossil fuel, concentrated solar and geothermal power plants. In high temperature S-CO_2 environment, structural materials are subjected to corrosion, carburization, as resulting degradation of mechanical properties, which may be a threat to system integrity especially for components having comparatively thin thicknesses.