Gruber, M. R., Hofko, B., Hoffmann, M., Stinglmayr, D., & Grothe, H. (2023). Analysis of metal corrosion methods and identification of cost-efficient and low corrosion deicing agents. Corrosion Engineering, Science and Technology. https://doi.org/10.1080/1478422X.2023.2200008
Deicing agents in winter maintenance are critical in providing safe roads at all times. Sodium chloride (SC) is the most common, efficient and favourable agent but has a drawback of high corrosiveness, thus substantially shortening the service life of metal-based transport infrastructures. This work focuses on corrosion and addresses approaches for the following corrosion test methods that quantify the mass loss of metals for different deicing agents: standardised neutral salt spray test (ISO 9227), salt solution immersion test (ASTM G31-72) and alternate immersion test (ISO 11130). A wide range of different deicing agents with and without corrosion inhibitors are tested on unalloyed steel, and an analytical and visual comparison is made. Results reveal a substantially reduced corrosion effect at reasonable costs by selecting the appropriate deicing agent with or without corrosion inhibitors. For the final selection of deicers, deicing performance and cost-effectiveness are compared.
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Projekttitel:
WINTERdienst mit effektiven, nachhaltigen und nicht aggressiven Taumitteln sowie optimalen LIFE Cycle Costs der Bahn: 873169 (ÖBB-Infrastruktur AG)
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Forschungsschwerpunkte:
Metallic Materials: 30% Surfaces and Interfaces: 40% Efficient Utilisation of Material Resources: 30%