Oxidation sulfidation resistance of Fe-Cr-Ni alloys

Patent · Sun Jan 01 04:00:00 EST 1984

OSTI ID:865154

Natesan, Ken ^[1]; Baxter, David J ^[2]

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1. Naperville, IL
2. Woodridge, IL

High temperature resistance of Fe-Cr-Ni alloy compositions to oxidative and/or sulfidative conditions is provided by the incorporation of about 1-8 wt. % of Zr or Nb and results in a two-phase composition having an alloy matrix as the first phase and a fine grained intermetallic composition as the second phase. The presence and location of the intermetallic composition between grains of the matrix provides mechanical strength, enhanced surface scale adhesion, and resistance to corrosive attack between grains of the alloy matrix at temperatures of 500.degree.-1000.degree. C.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4470848
• OSTI ID: 865154
• Country of Publication: United States
• Language: English

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