High Temperature Corrosion of Anchor Systems for Refractory

Wolfgang Bleck1, Gangolf Stegh2

1 Department of Ferrous Metallurgy, RWTH Aachen University; Aachen, Germany
2 Deutsche Gesellschaft für Feuerfest- und Schornsteinbau, Düsseldorf, Germany


Volume 1, Issue 2, Pages 68 - 73


High temperature corrosion decisively influences the durability of anchorage systems in refractory constructions. Various alloyingelements, for example nickel and chromium, react differently at distinctive atmospheres; consequently, the proper chemicalcomposition is important for the durability of the construction.Five different materials, which are used as refractories, have been tested and compared with respect to their corrosive propertiesin reducing, nitriding, carborizing, sulfidizing/oxidizing, and chlorinating media at distinctive temperatures and times of deposition. The metallographic pictures of the withdrawn assays are compared in order to evaluate the stage of corrosion.The materials are finally rated for their suitability in the according medium.


High temperature corrosion, reducing, nitriding, carborizing, sulfidizing, chlorinating, high-alloy steel, nickel-based alloy



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