High Temperature Corrosion of Anchor Systems for Refractory

Gangolf Stegh1, Wolfgang Bleck2

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

Revision

Volume 1, Issue 2, Pages 68 - 73

Abstract

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 The metallographic pictures of the withdrawn assays are compared in order to evaluate the stage of corrosion.The materials are finally rated for their suitability in the according medium.

Keywords

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

References

Copyright

© 2010 Göller Verlag