TY - CONF A1 - Erning, Johann Wilhelm A1 - Mikó, A. A1 - Schlerkmann, H. A1 - Mathiesen, T. ED - Stojanovic, I. ED - Alar, V. T1 - Qualification of stainless steels for drinking water applications: from round-robin testing to EN 16056 T2 - KORMAT 2012 - 20th conference of materials protection and industrial finish CY - Zagreb, Croatia DA - 2012-04-17 PY - 2012 SN - 1848-4255 SP - 7 EP - 14 CY - Zagreb, Croatia AN - OPUS4-25757 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Erning, Johann Wilhelm A1 - Mikó, Annamária A1 - Schlerkmann, H. A1 - Mathiesen, T. T1 - Qualification of materials for use in drinking water applications: Test method for stainless steel T2 - EUROCORR 2007 CY - Freiburg im Breisgau, Germany DA - 2007-09-09 KW - Stainless steel KW - Drinking water KW - Slow polarisation KW - Leaching test PY - 2007 N1 - Serientitel: EFC-Event – Series title: EFC-Event IS - 289 SP - 1 EP - 6 PB - DECHEMA CY - Frankfurt am Main AN - OPUS4-16199 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Erning, Johann Wilhelm A1 - Mikó, Annamária A1 - Schlerkmann, H. A1 - Mathiesen, T. T1 - Qualification of materials for use in drinking water applications: Test method for stainless steel T2 - Eurocorr 2007 CY - Freiburg, Germany DA - 2007-09-09 PY - 2007 AN - OPUS4-16118 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mikó, Annamária A1 - Erning, Johann Wilhelm A1 - Schlerkmann, H. A1 - Mathiesen, T. T1 - Comparative investigation of stainless steels used in drinking water distribution systems N2 - Five stainless steel alloys were tested and compared to find a test method for the qualification of stainless steel used in drinking water systems. Determination of the pitting/critical potentials from the conventional cyclic polarization results was shown to be difficult when stainless steels have high Mo and Cr content. The electrochemical impedance data indicated that results received with the conventional methods do not necessarily reflect the steady state. The low frequency time constant determined from the impedance measurements showed that the anodic polarization should be conducted with very slow scan rate to get information about the mechanism. The steady state investigations were compared with the conventional electrochemical results to propose an electrochemical-based route as a standard qualification method. The qualification method was tested to be valid by a European round-robin-test. KW - Drinking water KW - Stainless steel KW - Passivity KW - Corrosion KW - Test method for stainless steel PY - 2009 U6 - https://doi.org/10.1016/j.electacta.2009.08.003 SN - 0013-4686 SN - 1873-3859 VL - 54 IS - 28 SP - 7507 EP - 7513 PB - Elsevier Science CY - Kidlington AN - OPUS4-20132 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Stoljarova, A. A1 - Regenspurg, S. A1 - Bäßler, Ralph A1 - Mathiesen, T. A1 - Braüner Nielsen, J. T1 - Effect of lead and copper containing brine on steel materials for geothermal applications – A corrosion study N2 - Geothermal brines often contain high amounts of lead and copper ions that can precipitate as native Cu and Pb as consequence of galvanic corrosion when brines react with carbon steel materials. This contribution evaluates which materials could overcome the problem of galvanic corrosion at geothermal environment. The behavior of these materials in water containing high chloride concentration (> 100 g/L NaCl) as well as various amounts of dissolved bCl2 and/or CuCl2 was characterized by electrochemical and exposure measurements. Both methods reveal carbon steel suffers corrosion susceptibility, accompanied by Cu◦ and/or Pb◦ precipitation on the surface. Electrochemical measurements on stainless steels result in significant difference in corrosion and repassivation potentials (Ecorr = -189 mV, Erep = 70 mV), indicating a good corrosion resistance. KW - Copper KW - Lead KW - Corrosion KW - Steel KW - Geothermal energy PY - 2021 U6 - https://doi.org/10.1016/j.geothermics.2020.102024 SN - 0375-6505 VL - 91 SP - NIL_75 EP - NIL_85 PB - Elsevier CY - Amsterdam AN - OPUS4-51976 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -