TY - CONF A1 - Le, Quynh Hoa A1 - Bäßler, Ralph A1 - Kratzig, Andreas A1 - Bettge, Dirk A1 - Kranzmann, Axel A1 - Knauer, S. T1 - Droplet corrosion of CO2 transport pipeline steels T2 - Conference Proceedings NACE International Corrosion Conference 2018 N2 - In this work, the focus was set on the corrosion process of condensate as drops on the surface of carbon steels (X52, X70), martensitic steel UNS S41500, and superaustenite UNS N08031 in CO2 atmosphere with impurities at 278 K (to simulate the transportation condition in a buried pipeline). Exposure tests were performed at both normal pressure and high pressure where CO2 is supercritical or in dense phase. The drop, 1 ‑ 10 μL in volume, was prepared by dropping CO2 saturated ultra-pure water onto the surface of steel coupons in a one-liter-autoclave. The CO2 gas stream, simulating the oxyfuel flue gas with varying concentration of impurities (SO2 and O2 ), was then pumped into the autoclave to observe the condensation and corrosion impacts of impurities. Comparable exposure tests were carried out with the same gas mixture and the same volume of water as vapor to observe the drop formation and the corrosion process that follows. The wettability and stability of drops on the surface of steel coupons in CO2 supercritical/dense phase environment was evaluated additionally by contact angle measurement. T2 - NACE International Annual Corrosion Conference CY - Phoenix, AZ, USA DA - 15.04.2018 KW - Geothermal KW - Coating KW - SiO2 KW - Polyaniline KW - Corrosion PY - 2018 SP - 10845, 1 EP - 11 PB - Omnipress CY - Houston AN - OPUS4-44917 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bäßler, Ralph A1 - Erning, Johann Wilhelm T1 - Pinguin di Jerman: Apa hubungannya dengan korosi? T1 - Penguins in Germany: What does it has to do with corrosion? N2 - A failure case in an animal enclosure at Hannover Zoo is presented. Reasons for corrosive failure and solutions are discussed. T2 - Lecture at Institut Teknologi Sepuluh Nopember (ITS) CY - Surabaya, Indonesia DA - 12.11.2018 KW - Corrosion KW - Marine PY - 2018 AN - OPUS4-46741 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Bäßler, Ralph T1 - Challenges for corrosion resistance of metallic materials in geothermal applications N2 - Corrosion aspects for use of metallic materials in geothermal applications are presented and discussed. T2 - Corrosion Workshop beim Geothermie Kongress 2018 CY - Essen, Germany DA - 27.11.2018 KW - Corrosion KW - Geothermal KW - Steel PY - 2018 AN - OPUS4-46744 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Bäßler, Ralph T1 - Corrosion science and Technology (Book review) T2 - Materials and Corrosion N2 - It can be concluded, that this book fulfills its intention to be a relevant practical guide for students and professionals. The interested reader can get an insight into of all kinds of aspects one should consider when dealing with corrosion. KW - Corrosion PY - 2018 DO - https://doi.org/10.1002 maco.201870114 SN - 0947-5117 VL - 69 IS - 11 SP - 1677 EP - 1678 PB - Wiley‐VCH Verlag GmbH & Co. KGaA CY - Weinheim AN - OPUS4-46748 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Aristia, Gabriela A1 - Bäßler, Ralph A1 - Roth, C. T1 - Polyaniline/silicon dioxide containing coating for use in artificial geothermal brines T2 - Conference Proceedings NACE International Corrosion Conference 2018 N2 - Geothermal brine is a complex system containing a wide variety of dissolved salts resulting from the condition s in a geothermal well. These fluids lead to corrosion in pipes and other parts of geothermal system construction and necessitate intense research efforts in finding new suitable materials. Carbon steel is susceptible to corrosion in geothermal brine especially when it is exposed to a high temperature and high-pressure medium, which is considered to be an aggressive environment. An artificial geothermal water, bas ed on a brine composition found in Indonesia, was used to investigate the performance of high alloyed materials. The electrolyte has pH 4 and contains 1,500 mg/l Cl-, 20 mg/l SO4 2-, 15 mg/l HCO3 -, 200 mg/l Ca 2+, 250 mg/l K+, and 600 mg/l Na+. In order to protect the bare material in geothermal application, it is necessary to either use high alloyed material s or coatings. In this research, a coating system consisting of polyaniline and silicon dioxide was investigated regarding its behavior to protect carbon steel. In detail, the effect of SiO2 and polyaniline (PANi) addition was evaluated by exposure and electrochemical tests for 7 days, i.e. electrochemical impedance spectroscopy (EIS) and open circuit potential (OCP ) at room temperature and 150 °C with 1 MPa pressure . T2 - NACE International Annual Corrosion Conference CY - Phoenix, AZ, USA DA - 15.04.2018 KW - Geothermal KW - Coating KW - SiO 2 KW - Polyaniline KW - Corrosion PY - 2018 SP - 10708, 1 EP - 14 PB - Omnipress CY - Houston AN - OPUS4-44916 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -