TY - JOUR A1 - Pfennig, A. A1 - Wiegand, Reiner A1 - Bork, Claus-Peter T1 - Corrosion and corrosion fatigue of AISI 420C (X46Cr13) at 60 °C in CO2-saturated artificial geothermal brine N2 - The lifetime reduction of cyclically loaded AISI 420C (X46Cr13, 1.4034) constantly exposed to highly corrosive CO2-saturated hot thermal water is demonstrated in in situ-laboratory experiments (60 °C, brine: Stuttgart Aquifer, flowing CO2: 30 L/h). S–N plots, micrographic-, phase-, fractographic- and surface analysis were applied to obtain sustainable information on the corrosion and corrosion fatigue behavior. Maximum number of cycles (here 12.5 × 106 cycles to failure) is reached at σa = 173 MPa. Hydroxide and siderite layers were found on pits and crack surfaces. No typical fatigue limit exists and pit corrosion prior to crack initiation may be identified as failure cause. KW - A. Stainless steel KW - C. Corrosion fatigue KW - C. Pitting corrosion KW - C. Kinetic parameters KW - B. SEM PY - 2013 U6 - https://doi.org/10.1016/j.corsci.2012.11.005 SN - 0010-938X VL - 68 SP - 134 EP - 143 PB - Elsevier CY - Orlando, Fla. AN - OPUS4-27541 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -