Composition-vs-depth profiles obtained with Auger electron spectroscopy of air-oxidized stainless-steel surfaces

Journal Article · Sun Dec 01 04:00:00 EST 1974 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.1663236· OSTI ID:7324554

Betz, G ^[1]; Wehner, G K; Toth, L; Joshi, A

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1. Univ. of Minnesota, Minneapolis

Auger electron spectroscopy (AES) combined with simultaneous sputter removal of material from the sample (profiling) was used to determine changes in composition within surface layers (approximately 1000 A) of stainless steels which were air oxidized at various temperatures. Oxidation of 304 stainless steel at temperatures up to 600/sup 0/C results in the formation of an Fe-oxide layer with Cr and Ni appearing only deeper below the surface at the oxide-bulk interface. After treatment at 700/sup 0/C the first signs of Cr-oxide formation near the surface begin to appear. At 900/sup 0/C the Fe-oxide layer is replaced by a Cr-oxide film and becomes the dominant feature. Composition profiles for air-oxidized (at 900/sup 0/C) 321 stainless steel and Inconel are also reported.

• OSTI ID: 7324554
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 45:12; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104* -- Spectral Procedures-- (-1987)
AIR
ALLOYS
AUGER ELECTRON SPECTROSCOPY
CHALCOGENIDES
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM COMPOUNDS
CHROMIUM OXIDES
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
ELECTRON SPECTROSCOPY
FLUIDS
GASES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH TEMPERATURE
INCONEL ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
IRON COMPOUNDS
IRON OXIDES
MATERIALS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NICKEL COMPOUNDS
NICKEL OXIDES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
SPECTROSCOPY
STAINLESS STEEL-304
STAINLESS STEEL-321
STAINLESS STEELS
STEELS
TITANIUM ADDITIONS
TITANIUM ALLOYS
TRANSITION ELEMENT COMPOUNDS