The effects of boron additions on the oxidation of Fe-Cr alloys in high-temperature steam: Analytical results and mechanisms. [Fe-9Cr-1Mo-0. 5Mn and Fe-10Cr]

Journal Article · Sat Jun 01 00:00:00 EDT 1991 · Oxidation of Metals; (United States)

DOI:https://doi.org/10.1007/BF00664709· OSTI ID:6069780

Rowley, P N; Little, J ^[1]; Brydson, R ^[2]; Saunders, S R.J. ^[3]; Sauer, H; Engel, W ^[4]

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1. Univ. of Cambridge (England)
2. Imperial College, London (England)
3. National Physical Lab., Middlesex (England)
4. Fritz-Haber-Inst. der Max-Planck-Gesellschaft, Berlin (West Germany)

The oxide films formed on iron-chromium alloys in superheated steam have been investigated using a variety of microanalytical techniques, most notably electron energy loss spectroscopy. The addition of boron dopants leads to the rapid formation of a microcrystalline film of composition (Cr{sub x}B{sub 1{minus}x}){sub 2}O{sub 3}, which resists further oxidation. Analysis of the near-edge structures associated with each core-loss edge after different oxidation times allows one to postulate various mechanisms for the observed behavior.

• OSTI ID: 6069780
• Journal Information: Oxidation of Metals; (United States), Vol. 35:5-6; ISSN 0030-770X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BORON
METALLURGICAL EFFECTS
CHROMIUM ALLOYS
OXIDATION
IRON BASE ALLOYS
BORATES
BORON ADDITIONS
CHEMICAL REACTION KINETICS
CHROMIUM COMPOUNDS
ENERGY-LOSS SPECTROSCOPY
EXPERIMENTAL DATA
FORMATION FREE ENERGY
MOLYBDENUM ADDITIONS
MORPHOLOGY
PROTECTIVE COATINGS
STEAM
TRANSMISSION ELECTRON MICROSCOPY
X-RAY SPECTROSCOPY
ALLOYS
BORON ALLOYS
BORON COMPOUNDS
CHEMICAL REACTIONS
COATINGS
DATA
ELECTRON MICROSCOPY
ELECTRON SPECTROSCOPY
ELEMENTS
ENERGY
FREE ENERGY
INFORMATION
IRON ALLOYS
KINETICS
MICROSCOPY
MOLYBDENUM ALLOYS
NUMERICAL DATA
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
REACTION KINETICS
SEMIMETALS
SPECTROSCOPY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
360105* - Metals & Alloys- Corrosion & Erosion