Surface study of the oxidation of type 304L stainless steel at 600 K in air
The oxidation of type 304L stainless steel at 600 K in air was studied using a number of surface-analytical techniques, including Auger electron spectroscopy (AES), scanning electron microscopy with energy-dispersive analysis of X-rays (SEM-EDAX), secondary ion mass spectrometry (SIMS), and X-ray photoelectron spectroscopy (XPS). Spectral analysis showed that a duplex oxide was formed, the outer layer of which formed rapidly and was essentially iron (III) oxide. Beneath this was a mixed iron-chromium oxide. SIMS sputter-profile curves showed region of relatively low iron concentration in the oxide film at the metal-oxide interface. This resulted from the rapid diffusion of iron within the oxide film. The oxide grain boundaries were examined using SEM-EDAX. Higher chromium and silicon levels were detected in these regions compared with the corresponding grain centers. AES indicated the presence of silicon as SiO/sub 2/.
- Research Organization:
- Berkeley Nuclear Labs., Gloucestershire (England)
- OSTI ID:
- 5930863
- Journal Information:
- Oxid. Met.; (United States), Journal Name: Oxid. Met.; (United States) Vol. 29:5-6; ISSN OXMEA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360102 -- Metals & Alloys-- Structure & Phase Studies
360105* -- Metals & Alloys-- Corrosion & Erosion
AIR
ALLOYS
AUGER ELECTRON SPECTROSCOPY
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM COMPOUNDS
CHROMIUM OXIDES
CHROMIUM-NICKEL STEELS
COHERENT SCATTERING
CRYSTAL STRUCTURE
DIFFRACTION
DIFFUSION
ELECTRON MICROSCOPY
ELECTRON SPECTROSCOPY
ELEMENTS
FLUIDS
GASES
GRAIN BOUNDARIES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH ALLOY STEELS
ION MICROPROBE ANALYSIS
IRON ALLOYS
IRON BASE ALLOYS
IRON COMPOUNDS
IRON OXIDES
LOW CARBON-HIGH ALLOY STEELS
MASS SPECTROSCOPY
MATERIALS
MICROANALYSIS
MICROSCOPY
MICROSTRUCTURE
MINERALS
NICKEL ALLOYS
NONDESTRUCTIVE ANALYSIS
OXIDATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
SCANNING ELECTRON MICROSCOPY
SCATTERING
SEMIMETALS
SILICA
SILICON
SILICON COMPOUNDS
SILICON OXIDES
SPECTROSCOPY
STAINLESS STEEL-304L
STAINLESS STEELS
STEEL-CR19NI10-L
STEELS
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION
X-RAY SPECTROSCOPY