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Title: Oxidation resistant alloys, method for producing oxidation resistant alloys

Patent ·
OSTI ID:899197

A method for producing oxidation-resistant austenitic alloys for use at temperatures below 800 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 800 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 700 C. at a low cost

Research Organization:
Albany Research Center (ARC), Albany, OR (United States)
Sponsoring Organization:
USDOE - Office of Fossil Energy (FE)
Assignee:
U.S. Patent Office, Washingon, DC United States of America as represented by the U.S. Department of Energy, Washington, DC
Patent Number(s):
DOE/ARC-2000-068
Application Number:
U.S. Patent 6,475,301 B1; U.S. Pat. Appl. No. 09/684,655; DOE Case Number S-95,177; TRN: US200722%%230
OSTI ID:
899197
Resource Relation:
Patent File Date: 2000 Oct 10
Country of Publication:
United States
Language:
English