Influence of heat treatment on the corrosion behaviour of stainless steels during CO2-sequestration into saline aquifer

► Corrosion behaviour of heat treated X20Cr13 and X46Cr13 under CCS conditions. ► 1 year exposure of samples in laboratory experiments at 1 bar, 100 bar and 60 °C. ► Kinetic and microstructural analysis of local and surface corrosion phenomena. ► Influence of heat treatment, pressure and carbon content is demonstrated.