TY - CONF A1 - Pfennig, Anja A1 - Wolf, Marcus A1 - Bork, Claus-Peter T1 - Corrosion fatigue of X46Cr13 at 60 °C exposed to CO2-saturated geothermal brine T2 - EUROCORR 2012 - The European corrosion congress N2 - In geothermal power plants the materials used in pumps are loaded cyclically and exposed constantly to the highly corrosive hot thermal water. The lifetime reduction of AISI 420C (X46Cr13, 1.4034) is demonstrated in in-situ-laboratory experiments (T=60 °C, geothermal brine: Stuttgart Aquifer flow rate: 9 l/h, CO2). S-N plots, micrographic-, phase-, fractographic- and surface analysis were applied to obtain sustainable information on the corrosion fatigue behavior. Maximum number of cycles (here 12.5 x 106 cycles to failure) is reached at σa =173 MPa. No typical fatigue strength exists and passive corrosion fatigue may be identified as failure cause. T2 - EUROCORR 2012 - The European corrosion congress CY - Istanbul, Turkey DA - 2012-09-09 KW - Steel KW - Corrosion fatigue KW - Corrosion chamber KW - CCS KW - CO2-storage PY - 2012 SP - 1 EP - 11 AN - OPUS4-28586 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Pfennig, Anja A1 - Wolf, Marcus A1 - Wiegand, Reiner A1 - Kranzmann, Axel A1 - Bork, Claus-Peter T1 - Corrosion fatigue behavior and S-N-curve of X46Cr13 exposed to CCS-environment obtained from laboratory in-situ-experiments JF - Energy Procedia N2 - In corrosive environments such as CCS bore holes or geothermal power plants the materials loaded cyclically are also exposed constantly to the highly corrosive hot thermal water. The lifetime reduction of (X46Cr13, AISI 420C) is demonstrated in in-situ-laboratory experiments (T=60 °C, geothermal brine: Stuttgart Aquifer flow rate: 9 Nl/h, CO2). S-N plots, micrographic-, phase-, fractographic- and surface analysis were applied to obtain sustainable information on the corrosion fatigue behavior. Maximum number of cycles (here 12.5 x 106 cycles to failure) is reached at σa =173 MPa. No typical fatigue strength exists and passive corrosion fatigue is most likely failure cause. KW - Steel KW - Supercritical CO2 KW - Pipeline KW - Corrosion KW - CCS KW - CO2-storage PY - 2013 DO - https://doi.org/10.1016/j.egypro.2013.06.499 SN - 1876-6102 VL - 37 SP - 5764 EP - 5772 PB - Elsevier Ltd. CY - Amsterdam AN - OPUS4-29342 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -