|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Energy Technologies and Carbon Dioxide Management
||Corrosion Fatigue of X46Cr13 in CCS Environment
||Anja Pfennig, Marcus Wolf, Thomas Böllinghaus
|On-Site Speaker (Planned)
During CCS components are exposed to a corrosive environment and mechanical stress, which results in corrosion fatigue and inevitably followed by the lifetime reduction of these components. Therefore samples of the high alloyed stainless injection-pipe steel AISI420 X46Cr13 were tested in at 60 °C in an environment similar to the on-shore CCS-site in the northern German Bassin. In-situ tension compression experiments along with simultaneous electrochemical measurements were established using a newly designed corrosion chamber in a resonant testing machine at a frequency as low as 30–40 Hz. In addition technical CO2 was introduced into the closed system at a rate close to 9 L/h. S-N plots, micrographic analysis, and surface analysis of the fracture surface were applied. X46Cr13 (surface roughness Rz = 4) reached the maximum number of cycles (12.5 x 106) at a stress amplitude of 173 MPa and produced a low scatter range of 1:3.5.
||Planned: A print-only volume