TY - JOUR A1 - Bäßler, Ralph A1 - Yevtushenko, Oleksandra A1 - Carrillo Salgado, I. T1 - Corrosion behavior of highly alloyed steels in artificial saline aquifer fluids containing carbon dioxide KW - Highly alloyed steels KW - Carbon dioxide KW - Pitting corrosion PY - 2012 SN - 0430-6252 VL - 9 IS - 2 SP - 393 EP - 396 CY - L'viv, Ukrainian national academy of science AN - OPUS4-26056 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Yevtushenko, Oleksandra A1 - Bäßler, Ralph ED - Lexow, J. ED - Kishi, T. ED - Kitagawa, M. ED - Böllinghaus, T. T1 - Electrochemical studies on pitting corrosion on Cr13 steel exposed to CO2 and artificial brine with high chloride concentration N2 - Within the project COORAL (German acronym for 'CO2 purity for capture and storage') first studies on piping steels exposed to CO2 and artificial brine with high chloride concentration have been carried out. Corrosion behavior of martensitic Cr13 steel (1.4034) was investigated in a corrosive environment (artificial saline brine, T = 60 °C, CO2-flow rate 3 – 5 L/h, atmospheric pressure, exposure times from 1 h up to 14 days) using electrochemical and metallographic techniques. Different corrosion kinetics were observed as a function of exposure times and chloride concentration in the artificial brine. In CO2-saturated brine pitting corrosion was observed at free corrosion potential, whereas in the brine without addition of NaCl a stable passive layer built up. Predictions about corrosion mechanism are made and verified by means of surface analytical techniques. KW - Stainless steel KW - Pitting corrosion KW - Electrochemistry KW - Carbon dioxide PY - 2012 SN - 978-3-642-23347-0 SN - 978-3-642-23348-7 SP - 45 EP - 53 PB - Springer CY - Berlin Heidelberg AN - OPUS4-27393 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Yevtushenko, Oleksandra A1 - Bettge, Dirk A1 - Bäßler, Ralph A1 - Bohraus, Stefan T1 - Corrosion of CO2 transport and injection pipeline steels due to the condensation effects caused by SO2 and NO2 impurities N2 - Condensates from the gas stream in simulated CO2 transport pipelines have been identified during the experiments in the laboratory. Because of their acidic origin the corrosion resistance of pipeline steels used for CCS (carbon capture and storage) technology might be limited. Over the last years it has become clear that the amount of water and acid building constituents in the CO2 stream has to be controlled very well. In this work, condensates formed in experiments using gaseous CO2 containing high amounts of water, NO2 and SO2 were analyzed, replicated, and used for extensive electrochemical experiments. These highly acidic condensates were enriched with CO2 and then applied to characteristic steels planned to use in the CCS transport chain. Even high alloy steels are susceptible to localized corrosion under these conditions. The results implicate that condensation of aggressive acid droplets has to be avoided or the locations where condensation takes place have to be controlled extensively. KW - Carbon dioxide KW - Carbon steel KW - Corrosion KW - High alloy steel PY - 2015 U6 - https://doi.org/10.1002/maco.201307368 SN - 0947-5117 SN - 1521-4176 VL - 66 IS - 4 SP - 334 EP - 341 PB - Wiley-VCH CY - Weinheim AN - OPUS4-30036 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Yevtushenko, Oleksandra A1 - Bäßler, Ralph A1 - Pfennig, A. T1 - Corrosion behaviour of Cr13 steel in CO2 saturated brine with high chloride concentration N2 - The corrosion behaviour of martensitic stainless injection-pipeline steel X46Cr13 exposed to CO2 saturated artificial saline brine with high chloride concentration similar to onshore CCS-site at Ketzin, Germany has been investigated by means of electrochemical technique and microscopic observations at short exposure times (up to 24?h) and by mass loss and metallographic observations at exposure times up to 17520?h. Pitting corrosion kinetics has been characterised and the predictions about the corrosion mechanism are made. KW - Stainless steel KW - Pitting corrosion KW - Electrochemistry KW - Carbon dioxide PY - 2010 U6 - https://doi.org/10.1002/maco.201005932 SN - 0947-5117 SN - 1521-4176 VL - 61 IS - 9999 SP - 1 EP - 5 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-23057 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bäßler, Ralph A1 - Yevtushenko, Oleksandra A1 - Carillo Salgado, I. T1 - Corrosion behavior of highly alloyed steels in artificial saline aquifer fluids containing carbon dioxide N2 - C02-corrosion on piping steels might cause problems during injection of flue gases for their storage in deep geological aquifer fluids. Therefore, the selection of appropriate piping steels is a key factor to increase safety and reliability of the Carbon Capture and Storage (CCS) technology, and to keep the process cost-efficient. Within the project COORAL (German acronym for “C02 purity for capture and storage”) corrosion studies on injection piping steels exposed to C02 and artificial brine with high Chloride concentration have been carried out. Corrosion of the injection pipe in C02-rich aquifer fluid may occur within the aquifer brine or when at injection interruptions the aquifer fluid may flow back into the injection pipe. Because of high salinity of aquifer brine and C02-corrosion an appropriate material ranking of injection piping steels should be made. Corrosion resistance of steels 1.4034, 1.4021, 1.4542, 1.4162 and 1.4562 was investigated in a corrosive environment using electrochemical and metallographic techniques. Electrochemical experiments in order to investigate the surface corrosion kinetics and polarization measurements in order to investigate localized corrosion phenomena have been carried out. Critical pitting potentials and repassivation potentials were determined by polarization curves of investigated materials and compared with measured corrosion potentials. Measured values were used in order to determine the suitability and performance of tested steels in C02-injection conditions. T2 - Latincorr 2014 - IX Latin American congress of corrosion CY - Medellín, Colombia DA - 28.10.2014 KW - Highly alloyed steels KW - Carbon dioxide KW - Pitting corrosion PY - 2014 SP - Paper 2445981, 1 EP - 5 AN - OPUS4-32746 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -