TY - JOUR A1 - Kauss, Norman A1 - Heyn, A. A1 - Michael, O. A1 - Schymura, M. A1 - Rosemann, P. T1 - Application limits and sensitisation behaviour of the manganese- and nitrogen-alloyed austenitic stainless steel P2000 (X13CrMnMoN18-14-3) N2 - Nickel‐free high‐nitrogen‐alloyed stainless steels like the P2000 (X13CrMnMoN18‐14‐3) were developed to enhance the strength and corrosion resistance of austenitic stainless steels like 304 and 316 while keeping the typical high ductility. The mechanical and corrosive properties of P2000 were investigated and compared with 304 and 316 to highlight the application opportunities of this new alloy. The microstructure of the solution‐annealed condition was characterised by electron backscatter diffraction and the mechanical properties were studied by uniaxial tensile tests, Charpy impact tests and hardness measurements. The passivation behaviour was analysed using the electrochemical potentiodynamic reactivation, whereas the pitting corrosion resistance was compared by pitting potentials and pitting temperatures. However, secondary thermal influences or suboptimal heat treatment can impair the corrosion resistance due to the precipitation of secondary phases and the resulting sensitisation. Thermodynamic calculations and artificial ageing treatment in the range of 500–900°C for up to 100 h were used to determine critical time–temperature parameters for sensitisation. The microstructure of the various aged states was evaluated by scanning electron microscopy and compared with the degrading corrosion resistance characterised by the KorroPad method. KW - Austenitic stainless steel KW - Electrochemical methods KW - High‐nitrogen steel KW - Mechanical properties KW - Corrosion resistance PY - 2021 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-527925 DO - https://doi.org/10.1002/maco.202112450 VL - 71 IS - 10 SP - 1656 EP - 1667 PB - Wiley-VCH GmbH AN - OPUS4-52792 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Battig, Alexander A1 - Müller, Patrick A1 - Bertin, Annabelle A1 - Schartel, Bernhard T1 - Hyperbranched Rigid Aromatic Phosphorus-Containing Flame Retardants for Epoxy Resins N2 - A rigid aromatic phosphorus-containing hyperbranched flame retardant structure is synthesized from 10-(2,5 dihydroxyphenyl)-10H-9-oxa- 10-phosphaphenanthrene-10-oxide (DOPO-HQ), tris(4-hydroxyphenyl)phosphine oxide (THPPO), and 1,4-terephthaloyl chloride (TPC). The resulting poly-(DOPO-HQ/THPPO-terephthalate) (PDTT) is implemented as a flame retardant into an epoxy resin (EP) at a 10 wt% loading. The effects on EP are compared with those of the monomer DOPO-HQ and triphenylphosphine oxide (OPPh3) as low molar mass flame retardants. The glass transition temperature, thermal decomposition, flammability (reaction to small flame), and burning behavior of the thermosets are investigated using differential scanning calorimetry, thermogravimetric analysis, pyrolysis combustion flow calorimetry, UL 94-burning chamber testing, and cone calorimeter measurements. Although P-contents are low at only 0.6 wt%, the study aims not at attaining V-0, but at presenting a proof of principle: Epoxy resinswith PDTT show promising fire performance, exhibiting a 25% reduction in total heat evolved (THE), a 30% reduction in peak heat release rate (PHRR) due to flame inhibition (21% reduction in effective heat of combustion (EHC)), and an increase in Tg at the same time. This study indicates that rigid aromatic hyperbranched polymeric structures offer a promising route toward multifunctional flame retardancy. KW - Hyperbranched KW - Aromatic KW - Phosphorus KW - Phosphine oxide KW - DOPO KW - Flame retardant KW - Xpoxy resin KW - Rigid PY - 2021 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-525910 DO - https://doi.org/10.1002/mame.202000731 SN - 1439-2054 VL - 306 IS - 4 SP - 731 PB - Wiley AN - OPUS4-52591 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wagner, Adrian T1 - Auslagerung von nichtrostenden Stählen in Straßentunneln - Stand nach 3 Jahren N2 - Im Sinne einer mittel- bis langfristigen Reduktion wartungsbedingter Verkehrsbeeinflussungen in Tunnelbauwerken ist es von Bedeutung, die intensiven und aufwendigen Reinigungs- und Pflegearbeiten für Ein- und Anbauteile aus nichtrostendem Stahl in Straßentunneln zu reduzieren. Unter diesem Aspekt besteht großes Interesse die Einsatzmöglichkeiten alternativer nichtrostender Stähle, zu den bislang gebräuchlichen nichtrostenden austenitischen Stählen 1.4404 und 1.4571, zu eruieren. In dem Forschungsprojekt geht es um die Qualifizierung nichtrostender ferritisch austenitischer Stähle (Duplexstahl) in Straßentunneln. Diese verfügen im Vergleich zu austenitischen Stählen über eine doppelt so hohe Festigkeit bei gleichzeitig hoher Korrosionsbeständigkeit. In dieser Präsentation werden die Auslagerungsergebnisse nach 3 Jahren vorgestellt. T2 - Vorstellung der 3 Jahres Ergebnisse beim VDEh in Düsseldorf CY - Düsseldorf DA - 04.08.2021 KW - Duplex KW - Tunnelbauwerke KW - Korrosion KW - Korrosivität KW - Straßentunnel KW - Lean-Duplex PY - 2021 AN - OPUS4-53068 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wagner, Adrian T1 - Korrosionsmonitoring bei der Instandsetzung von chloridbelasteten Stahlbetonwerken N2 - In der aktuellen RL-SIB (DAfStB) wie auch in der TR Instandsetzung (DIBt) ist bei Anwendung des Instandsetzungsprinzips W-CL der Erfolg der Maßnahme durch Einbau und Messung von Korrosionsstromsensoren gefordert. Art und Aufbau der Sensoren sowie Kriterien zur Bewertung der Ergebnisse gibt es nicht. Ziel ist die Ausarbeitung eines Regelwerks-Entwurfes für die Art und den Aufbau von Korrosionsmonitoring-Systemen sowie für Kriterien zur zuverlässigen Bewertung der Messergebnisse, mit denen der Erfolg bei verschiedenen Instandsetzungskonzepten überprüft werden kann. T2 - 3. PA Sitzung WIPANO Projekt KoMICS CY - Berlin, Germany DA - 17.11.2021 KW - Korrosion KW - Korrosionsmonitoring KW - Sensoren KW - Chloridhaltiger Beton KW - Instandhaltung PY - 2021 AN - OPUS4-53782 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Zhang, Kun A1 - Pan, L. A1 - Li, J. A1 - Lin, C. T1 - What is the mechanism of the fiber effect on the rheological behavior of cement paste with polycarboxylate superplasticizer? N2 - Compared with most common construction materials, fiber reinforced cementitious materials are well known to exhibit better physical, working and mechanical properties. In this study, three fibers were selected: polypropylene fiber (PPF) and polyvinyl alcohol fiber (PVAF), which represented synthetic fibers, and sisal fiber (SF), which represented natural fibers. Effects of these fibers on the flowability, rheological properties, and adsorption behavior of the cement paste with polycarboxylate superplasticizer (PCE) were investigated. Furthermore, the above experimental results were verified by measuring the contact angle of the fiber with water and PCE solution and the apparent morphology of the fiber. Results revealed that the addition of fibers significantly reduces the fluidity of the cement paste, while the yield stress and plastic viscosity of the cement paste increase with the addition of fibers. From the contact angle and scanning electron microscope, the surface of SF was relatively rough, and the contact angle of SF with water or PCE solution was the smallest. It can be concluded that the plant fiber has a significant influence on the fluidity and rheology of cement paste. KW - Cement paste KW - Polycarboxylate superplasticizer KW - Polypropylene fiber KW - Polyvinyl alcohol fiber KW - Sisal fiber KW - Rheological property KW - Fluidity KW - Adsorption PY - 2021 DO - https://doi.org/10.1016/j.conbuildmat.2021.122542 SN - 0950-0618 VL - 281 SP - 1 EP - 11 PB - Elsevier CY - Amsterdam AN - OPUS4-56893 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - von Werder, Julia A1 - Simon, Sebastian A1 - Gardei, André A1 - Fontana, P. A1 - Meng, Birgit T1 - Thermal and hydrothermal treatment of UHPC: influence of the process parameters on the phase composition of ultra-high performance concrete N2 - Several studies show that thermal and hydrothermal treatment can further improve the excellent properties of UHPC in terms of mechanical strength and durability. While for the thermal treatment the increase in strength is attributed to an intensified pozzolanic and hydraulic reaction, for the hydrothermal treatment previous studies accredited it mostly to the formation of tobermorite. In the presented study thermal and hydrothermal treatment of UHPC samples was systematically varied and the phase formation analysed related to the strength development of a reference sample cured for 28 days in water. For the thermal treatment the results show that the strength increase depends on the protection against desiccation and can be ascribed to an improved pozzolanic reaction of the siliceous fillers. To achieve a significant enhancement of strength, a pre-storage time of few days and a long dwell time at elevated temperature/pressure are required. For the hydrothermal treatment already heating the specimens up to 185 °C in saturated steam followed by an immediate cooling leads to a substantial increase in compressive strength. Pre-storage time did not affect the result as far as a minimum of several hours is guaranteed. The improved performance is due to an increase in the pozzolanic and hydraulic reaction. Surprisingly, tobermorite was only found within a very thin layer at the surface of the sample, but not in the bulk. Sulphate and aluminium stemming from the decomposition of the ettringite are bound in the newly formed phases hydroxylellestadite and hydrogarnet. KW - UHPC KW - Thermal treatment KW - Hydrothermal treatment KW - Compressive strength KW - Phase development KW - Durability KW - Tobermorite KW - Hydroxylellestadite KW - Hydrogarnet PY - 2021 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-523402 DO - https://doi.org/10.1617/s11527-021-01633-w SN - 1871-6873 SN - 1359-5997 VL - 54 IS - 1 SP - Article 44 PB - Springer Nature AN - OPUS4-52340 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kotula, Stefan T1 - Messsystemanalyse („Ringversuch“) zu WIPANO-Vorhaben „GELELEK“ – Zusammenfassung der Ergebnisse N2 - Im Rahmen des WIPANO-Vorhabens „GELELEK“ wurde ein Ringversuch durchgeführt, bei dem ca. 20 Teilnehmer aus Wirtschaft und Forschung teilnahmen. Dabei wurde eine neuartige elektrochemische Messung von Zinkoberflächen durchgeführt, welche an der BAM entwickelt und für industrielle Anwendung optimiert wurde. Dabei diente ein an der BAM geschriebener Normvorschlag als Anleitung. In dem Vortrag werden die Ergebnisse und Auswertungen der Messdaten vorgestellt. T2 - Sitzung der Ad hoc Gruppe "GELELEK" im DIN-Normenausschuss Materialprüfung (NMP) CY - Online Meeting DA - 07.09.2021 KW - Deckschichtbildung KW - Gelartige Elektrolyte KW - Korrosionsuntersuchungen KW - Ringversuch KW - Normung KW - Zink PY - 2021 AN - OPUS4-53280 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Babutzka, Martin T1 - Vorstellung des WIPANOVerbundforschungsvorhabens GELELEK: Forschungsziele und Ergebnisse N2 - Der Vortrag stellt das WIPANOForschungsvorhaben GELELEK vor und fasst die wichtigsten erzielten Ergebnisse zusammen. T2 - 13. Sitzung des GfKORR Arbeitskreises „Korrosionsuntersuchung und -überwachung“ CY - Online meeting DA - 08.12.2021 KW - Deckschichtbildung KW - Gelartige Elektrolyte KW - Korrosionsuntersuchungen KW - Normung KW - Ringversuch KW - Zink KW - WIPANO PY - 2021 AN - OPUS4-53946 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Babutzka, Martin T1 - New findings on the formation of corrosion product layers on zinc in the atmosphere N2 - The presentation shows systematic investigations to describe the corrosion and corrosion product formation processes of pure zinc under the climatic conditions currently prevailing in the Federal Republic of Germany. The investigations in their entirety aim at questioning current and establishing new ways of looking at the formation of corrosion products of pure zinc under atmospheric corrosion conditions. Thus, they make a significant contribution in understanding corrosion protection by zinc and zinc coatings. In particular, the focus is placed on the initial stage of the corrosion product formation. A systematic investigation of this time range, which is characterized by very reactive corrosion products, is only made possible by using gel-type electrolytes. The short periods of time at the beginning of weathering is now measurable and their influence on the formation of corrosion products and the kinetics of layer formation describable. By combining the new electrochemical approach with gravimetric, microscopic and analytical methods, new insights could be gained both on a methodic and scientific level. T2 - EUROCORR 2021 CY - Online meeting DA - 20.09.2021 KW - Atmospheric Corrosion KW - Corrosion KW - Corrosion products KW - Gel-type electrolytes KW - Zinc PY - 2021 AN - OPUS4-53332 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Babutzka, Martin T1 - Neue Erkenntnisse zur Deckschichtbildung von Zink an der Atmosphäre N2 - Die Untersuchungen und Ausführungen im Vortrag belegen, dass verfügbare Modellvorstellungen zur Beschreibung der Deckschichtbildung und Korrosion von Zink unter aktuellen atmosphärischen Bedingungen in Europa nicht mehr gültig sind und neu bewertet werden müssen. So können beispielsweise bisher verfügbare Prognosemodelle den Korrosionsfortschritt nicht mehr ausreichend beschreiben, da durch die Verringerung des Schwefeldioxidgehaltes der Luft veränderte Mechanismen vorliegen. T2 - Sitzung des Forschungsbeirats des Gemeinschaftsausschuss Verzinken e.V. CY - Online Meeting DA - 07.10.2021 KW - Atmosphärische Korrosion KW - Deckschichtbildung KW - Gelartige Elektrolyte KW - Zink PY - 2021 AN - OPUS4-53478 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Babutzka, Martin T1 - Vorstellung des WIPANO-Vorhabens GELELEK N2 - Der Vortrag stellt das WIPANO-Forschungsvorhaben GELELEK vor und fasst die wichtigsten erzielten Ergebnisse zusammen. T2 - Sitzung des Forschungsbeirats des Gemeinschaftsausschuss Verzinken e.V. CY - Online meeting DA - 07.10.2021 KW - Deckschichtbildung KW - Gelartige Elektrolyte KW - Korrosionsuntersuchungen KW - Normung KW - Ringversuch KW - Zink PY - 2021 AN - OPUS4-53479 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Erning, Johann Wilhelm T1 - Wie gehe ich bei einer Schadensuntersuchung vor? N2 - Die Vorgehensweise bei einer Schadensanalyse wird beschrieben. Hinweise zu Methodik, Fehlervermeidung und Verhalten werden gegeben. T2 - Der sichere Einsatz von Werkstoffen aus Kupfer und Kupferlegierungen in der Trinkwasserinstallation CY - Online meeting DA - 12.20.2021 KW - Schadensanalyse KW - Korrosion PY - 2021 AN - OPUS4-53518 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Babutzka, Martin T1 - Neue Erkenntnisse zur Deckschichtbildung von Zink an der Atmosphäre N2 - Die Untersuchungen und Ausführungen im Vortrag belegen, dass verfügbare Modellvorstellungen zur Beschreibung der Deckschichtbildung und Korrosion von Zink unter aktuellen atmosphärischen Bedingungen in Europa nicht mehr gültig sind und neu bewertet werden müssen. So können beispielsweise bisher verfügbare Prognosemodelle den Korrosionsfortschritt nicht mehr ausreichend beschreiben, da durch die Verringerung des Schwefeldioxidgehaltes der Luft veränderte Mechanismen vorliegen. T2 - Sitzung des GfKORR Arbeitskreises „Korrosion und Korrosionsschutz von Eisen und Stahl“ CY - Online meeting DA - 22.06.2021 KW - Atmosphärische Korrosion KW - Gelartige Elektrolyte KW - Deckschichtbildung KW - Zink PY - 2021 AN - OPUS4-52843 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Babutzka, Martin T1 - New findings on the formation of corrosion product layers on zinc in the atmosphere N2 - The presentation shows systematic investigations to describe the corrosion and corrosion product formation processes of pure zinc under the climatic conditions currently prevailing in the Federal Republic of Germany. The investigations in their entirety aim at questioning current and establishing new ways of looking at the formation of corrosion products of pure zinc under atmospheric corrosion conditions. Thus, they make a significant contribution in understanding corrosion protection by zinc and zinc coatings. In particular, the focus is placed on the initial stage of the corrosion product formation. A systematic investigation of this time range, which is characterized by very reactive corrosion products, is only made possible by using gel-type electrolytes. The short periods of time at the beginning of weathering is now measurable and their influence on the formation of corrosion products and the kinetics of layer formation describable. By combining the new electrochemical approach with gravimetric, microscopic and analytical methods, new insights could be gained both on a methodic and scientific level. T2 - 2nd Task Group Meeting TC124 WG4-TC 250 SC5 Task Group Corrosion CY - Online Meeting DA - 06.05.2021 KW - Zinc KW - Corrosion products KW - Gel-type electrolytes KW - Corrosion KW - Atmospheric corrosion PY - 2021 AN - OPUS4-52604 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Babutzka, Martin T1 - Vorstellung des Forschungsvorhabens GELELEK N2 - Der Vortrag stellt das Forschungsvorhaben GELELEK im Rahmen der Ad hoc Gruppe "GELELEK" des DIN-Normenausschusses Materialprüfung (NMP) vor. T2 - Sitzung der Ad hoc Gruppe "GELELEK" im DIN-Normenausschuss Materialprüfung (NMP) CY - Online Meeting DA - 21.04.2021 KW - Deckschichtbildung KW - Gelartige Elektrolyte KW - Korrosionsuntersuchungen KW - Zink PY - 2021 AN - OPUS4-52541 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Kotula, Stefan T1 - Messsystemanalyse („Ringversuch“) zu WIPANO-Vorhaben „GELELEK“ N2 - Der Vortrag stellt die anstehende Messsystemanalyse im Rahmen der Ad hoc Gruppe "GELELEK" des DIN-Normenausschusses Materialprüfung (NMP) vor und erläutert die notwendigen Schritte zur erfolgreichen Durchführung. T2 - Sitzung der Ad hoc Gruppe "GELELEK" im DIN-Normenausschuss Materialprüfung (NMP) CY - Online Meeting DA - 21.04.2021 KW - Deckschichtbildung KW - Gelartige Elektrolyte KW - Korrosionsuntersuchungen KW - Zink KW - Normung KW - Messsystemanalyse PY - 2021 AN - OPUS4-52542 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seher, Julia T1 - Lightweight Aggregates - Recycling of Construction and Demolition Waste N2 - A brief introduction into the production of lightweight aggregates from construction and demolition waste and some results of the project HYTEGRA. T2 - Postdoc Symposium: BAM Focus Area Material CY - Online meeting DA - 28.04.2021 KW - Leichte Gesteinskörnung KW - Rohstoffliches Recycling KW - Reststoffe KW - Mauerwerkbruch KW - Papierasche KW - Speichermaterial PY - 2021 AN - OPUS4-52606 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - von Werder, Julia T1 - Internal sulfate resistance of concrete N2 - If the amount of sulfate within the mix design for concrete is not balanced, ettringite formation which first controls solidification continues while the concrete is hardening. Ettringite forms by reaction of sulfate contained in the cement or in some admixture with calcium aluminate (C3A) as cement component. The “late primary ettringite formation” promotes an increase in volume within the hardened concrete leading to cracks. To analyze the effect of substituting part of ordinary Portland cement (OPC) by a treated brown coal fly ash mortar bars were tested according to ASTM C452. This test method was originally developed to extrapolate from the internal to external sulfate attack and is based on the idea that by testing a concrete mixture containing sulfate the process of deterioration is accelerated because it does not have to diffuse into the concrete before reaction first. In addition to the samples prescribed in ASTM C452 further samples in the size of the German SVA procedure were tested also designed for accessing the external sulfate resistance. The results show that while the replacement of 25 % of cement by brown coal fly ash leads to length changes around the limit defined by ASTM, the substitution of 50 % cement exceeded the limit by a multiple. The progress of expansion is the very similar for the two geometries tested. In-situ XRD measurements confirmed that while for pastes made of OPC the formation of ettringite is completed after 20 hours, this is not true for the mixtures containing the brown coal fly ash. In a different study the effect of hydrothermal treatment on the phase composition of ultra-high-performance concrete was analyzed. The results show that the sulfate and aluminate resulting from the decomposition of ettringite are bound into new phases. If this binding is permanent this might allow the larger use of sulfate bearing raw materials. T2 - EuroCoalAsh 2021 Conference CY - Online meeting DA - 02.11.2021 KW - Brown coal fly ash KW - Ettringite KW - Internal sulfate resistance KW - Test methods KW - In-situ XRD KW - Hydrothermal treatment PY - 2021 AN - OPUS4-54134 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Battig, Alexander A1 - Abdou-Rahaman Fadul, Naïssa A1 - Frasca, Daniele A1 - Schulze, Dietmar A1 - Schartel, Bernhard T1 - Multifunctional graphene nanofiller in flame retarded polybutadiene/chloroprene/carbon black composites N2 - To curtail flammability risks and improve material properties, flame retardants (FRs) and fillers are mixed into rubbers. High loadings of aluminum trihydroxide (ATH) and carbon black (CB) are the most used FRs and reinforcing additive, respectively, in rubbers. To reduce loading without losing mechanical properties, partial substitution of ATH as well as CB by low amounts of multilayer graphene (MLG) nanoparticles is investigated. The high aspect ratio MLG is made of ten graphene sheets. In polybutadiene/chloroprene (BR/CR) nanocomposites 3 phr MLG replaced 15 phr CB and/or 3 phr ATH. Material and mechanical properties as well as fire behavior of the nanocomposites are compared to BR/CR with 20 phr CB both with and without 50 phr ATH. MLG appears as a promising nanofiller to improve the functional properties: replacement of CB improved rheological, curing, and mechanical properties; substitution of ATH improved nanocomposite properties without affecting flame retardancy. KW - Nanocomposites KW - Rubber KW - Multilayer graphene KW - Carbon black KW - Polybutadiene/chloroprene KW - Graphene PY - 2021 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-523468 DO - https://doi.org/10.1515/epoly-2021-0026 SN - 1618-7229 VL - 21 IS - 1 SP - 244 EP - 262 PB - De Gruyter AN - OPUS4-52346 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Babutzka, Martin T1 - Neue Erkenntnisse zur Deckschichtbildung von Zink an der Atmosphäre N2 - Die Untersuchungen und Ausführungen im Vortrag belegen, dass verfügbare Modellvorstellungen zur Beschreibung der Deckschichtbildung und Korrosion von Zink unter aktuellen atmosphärischen Bedingungen in Europa nicht mehr gültig sind und neu bewertet werden müssen. So können beispielsweise bisher verfügbare Prognosemodelle den Korrosionsfortschritt nicht mehr ausreichend beschreiben, da durch die Verringerung des Schwefeldioxidgehaltes der Luft veränderte Mechanismen vorliegen. T2 - Sitzung des GfKORR Arbeitskreises „Zink und Zinküberzügel“ CY - Online meeting DA - 28.09.2021 KW - Atmosphärische Korrosion KW - Deckschichtbildung KW - Gelartige Elektrolyte KW - Zink PY - 2021 AN - OPUS4-53410 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -