Improved oxidation sulfidation resistance of Fe-Cr-Ni alloys

Patent · Tue Jul 26 00:00:00 EDT 1983

OSTI ID:7140406

Natesan, K; Baxter, D J

High temperature resistance of Fe-Cr-Ni alloy compositions to oxidative and/or sulfidative conditions is provided by the incorporation of about 1 to 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 to 1000/sup 0/C.

• DOE Contract Number: W-31-109-ENG-38
• Assignee: Dept. of Energy
• Application Number: ON: DE84010066
• OSTI ID: 7140406
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHROMIUM ALLOYS
CORROSION RESISTANCE
IRON BASE ALLOYS
NICKEL ALLOYS
NIOBIUM ALLOYS
ZIRCONIUM ALLOYS
CHEMICAL COMPOSITION
OXIDATION
SULFIDATION
ALLOYS
CHEMICAL REACTIONS
IRON ALLOYS
360105* - Metals & Alloys- Corrosion & Erosion