Oxidation-sulfidation behavior of Fe-Cr-Ni alloys containing additions of Zr, Nb, OR Ti
Rapid degradation of Fe-Cr-Ni alloys may occur in mixed oxygen- and sulfur-containing environments at elevated temperatures unless a protective surface oxide scale can be formed and maintained. The present results indicate that alloy chemistry has a strong influence on the scaling behavior of a Fe-25% Cr-20% Ni-base alloy. The presence of Mn (which forms a stable sulfide at low sulfur potentials) or Ti (which permits high rates of oxide growth) may contribute to breakaway behavior, whereas the addition of either of two reactive elements, Zr or Nb, promotes protection by an oxide scale. Mechanisms to explain the effects of individual elemental additions to the base alloy are discussed. 8 figures.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6859124
- Report Number(s):
- CONF-840664-1; ON: DE84005411
- Country of Publication:
- United States
- Language:
- English
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Oxidation-sulfidation behavior of Fe-Cr-Ni-Zr alloys in mixed-gas environments
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Related Subjects
360105* -- Metals & Alloys-- Corrosion & Erosion
ALKANES
ALLOYS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
ELEMENTS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HYDROCARBONS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
METHANE
NICKEL ALLOYS
NIOBIUM ALLOYS
NONMETALS
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
SCALING
STAINLESS STEEL-310
STAINLESS STEELS
STEELS
SULFIDATION
SULFIDES
SULFUR COMPOUNDS
TITANIUM ALLOYS
VERY HIGH TEMPERATURE
ZIRCONIUM ALLOYS