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Surface modification to improve fireside corrosion resistance of Fe-Cr ferritic steels

United States Patent

March 16, 2010
View the Complete Patent at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
An article of manufacture and a method for providing an Fe--Cr ferritic steel article of manufacture having a surface layer modification for corrosion resistance. Fe--Cr ferritic steels can be modified to enhance their corrosion resistance to liquid coal ash and other chemical environments, which have chlorides or sulfates containing active species. The steel is modified to form an aluminide/silicide passivating layer to reduce such corrosion.
Park; Jong-Hee (Clarendon Hills, IL), Natesan; Krishnamurti (Naperville, IL), Rink; David L. (Mokena, IL)
UChicago Argonne LLC (Chicago, IL)
11/ 374,849
March 14, 2006
The United States Government has certain rights in the invention pursuant to Contract No. W-31-109-ENG-38 between the U.S. Department of Energy and the University of Chicago operating Argonne National Laboratory.