High-temperature oxidation of Fe-2 1/4Cr-1Mo in oxygen

Journal Article · Mon Jun 01 04:00:00 EDT 1987 · Oxid. Met.; (United States)

DOI:https://doi.org/10.1007/BF00659272· OSTI ID:5390496

Simms, N J; Little, J A

The oxidation of a 2 1/4Cr-1Mo steel in dry flowing oxygen has been studied in the temperature range 550-700/sup 0/C for periods of up to 100 hr. A detailed low-resolution microstructural investigation revealed a layered oxide consisting of a very fine-grained and finely pored innermost layer of doped spinel, a central columnar-grained relatively coarsely pored layer of magnetite, and an outer fine-grained hematite layer with fine pores and covered with whiskers of ..cap alpha..-Fe/sub 2/O/sub 3/. This structure is compared with previous results on Fe and model Fe-Cr alloys, as are the kinetics of the oxidation reaction.

• Research Organization: Univ. of Cambridge (England)
• OSTI ID: 5390496
• Journal Information: Oxid. Met.; (United States), Journal Name: Oxid. Met.; (United States) Vol. 27:5/6; ISSN OXMEA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360105* -- Metals & Alloys-- Corrosion & Erosion
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BOILERS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-MOLYBDENUM STEELS
COHERENT SCATTERING
CORROSION
CORROSION RESISTANCE
CORROSIVE EFFECTS
CRYSTAL STRUCTURE
CRYSTALS
DIFFRACTION
ELEMENTS
FERRITIC STEELS
FURNACES
HEMATITE
HIGH TEMPERATURE
INTERGRANULAR CORROSION
IRON ALLOYS
IRON BASE ALLOYS
IRON COMPOUNDS
IRON ORES
IRON OXIDES
KINETICS
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MAGNETITE
MICROSTRUCTURE
MINERALS
MONOCRYSTALS
NONMETALS
ORES
OXIDATION
OXIDE MINERALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
POROSITY
REACTION KINETICS
SCALING
SCATTERING
SPINELS
STEELS
TEMPERATURE EFFECTS
TRANSITION ELEMENT COMPOUNDS
WHISKERS
X-RAY DIFFRACTION