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Oxidation resistant alloys, method for producing oxidation resistant alloys

United States Patent

November 5, 2002
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
A method for producing oxidation-resistant austenitic alloys for use at temperatures below C. comprising of: providing an alloy comprising, by weight %: 14-18% chromium, 15-18% nickel, 1-3% manganese, 1-2% molybdenum, 2-4% silicon, 0% aluminum and the balance being iron; heating the alloy to C. for between 175-250 hours prior to use in order to form a continuous silicon oxide film and another oxide film. The method provides a means of producing stainless steels with superior oxidation resistance at temperatures above C. at a low cost
Dunning; John S. (Corvallis, OR), Alman; David E. (Salem, OR)
The United States of America as represented by the United States Department of Energy (Washington, DC)
09/ 684,655
October 10, 2000
CONTRACTUAL RIGHTS TO THE INVENTION The U.S. Government has certain rights in this invention pursuant to an employment contract between the inventors and the U.S. Department of Energy.