Oxidation of Fe-19. 6Cr-15. 1Mn stainless steel
Journal Article
·
· Oxid. Met.; (United States)
The oxidation behavior in air of Fe-19.6Cr-15.1Mn was studied from 700 to 1000/degree/C. Pseudoparabolic kinetics were followed, giving an activation energy of 80 kcal/mole. A comparison of rates for Fe/sub 3/O/sub 4/ formation during oxidation of FeO as well as for the oxidation of various stainless steels, which form spinels, gave good agreement and strongly suggests that spinel growth was rate controlling. The oxidation rate of this alloy (high-Cr) was compared with that of an alloy previously studied, Fe-9.5Cr-17.8Mn (low-Cr) and was less by about a factor of 12 at 1000/degree/C and by about a factor of 100 at 800/degree/C. The marked differences can be ascribed to the destabilization of wustite by the higher chromium alloy. Scale structures are explained by the use of calculated stability diagrams. The mechanism of oxidation is discussed and compared with that of the low-Cr alloy.
- Research Organization:
- School of Engineering and Applied Science, Los Angeles, CA (USA)
- OSTI ID:
- 6053834
- Journal Information:
- Oxid. Met.; (United States), Journal Name: Oxid. Met.; (United States) Vol. 29:3-4; ISSN OXMEA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360105* -- Metals & Alloys-- Corrosion & Erosion
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209 -- Fusion Power Plant Technology-- Component Development & Materials Testing
ALLOYS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM COMPOUNDS
CHROMIUM OXIDES
CHROMIUM STEELS
COHERENT SCATTERING
CRYSTAL STRUCTURE
DIFFRACTION
DIFFUSION
HIGH ALLOY STEELS
IRON ALLOYS
IRON BASE ALLOYS
IRON COMPOUNDS
IRON OXIDES
KINETICS
MANGANESE ALLOYS
MANGANESE COMPOUNDS
MANGANESE OXIDES
MATERIALS
METALLOGRAPHY
MICROSTRUCTURE
OXIDATION
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
SCALING
SCATTERING
STAINLESS STEELS
STEELS
TEMPERATURE EFFECTS
THERMONUCLEAR REACTOR MATERIALS
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION
360102 -- Metals & Alloys-- Structure & Phase Studies
360105* -- Metals & Alloys-- Corrosion & Erosion
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209 -- Fusion Power Plant Technology-- Component Development & Materials Testing
ALLOYS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM COMPOUNDS
CHROMIUM OXIDES
CHROMIUM STEELS
COHERENT SCATTERING
CRYSTAL STRUCTURE
DIFFRACTION
DIFFUSION
HIGH ALLOY STEELS
IRON ALLOYS
IRON BASE ALLOYS
IRON COMPOUNDS
IRON OXIDES
KINETICS
MANGANESE ALLOYS
MANGANESE COMPOUNDS
MANGANESE OXIDES
MATERIALS
METALLOGRAPHY
MICROSTRUCTURE
OXIDATION
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
SCALING
SCATTERING
STAINLESS STEELS
STEELS
TEMPERATURE EFFECTS
THERMONUCLEAR REACTOR MATERIALS
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION