Solution and inhibition of iron in neutral solution in the presence of a nonstoichiometric surface oxide

Journal Article · Tue Jul 01 00:00:00 EDT 1986 · Prot. Met. (Engl. Transl.); (United States)

OSTI ID:5283482

Oshe, E K; Fokin, M N; Zimina, T Y

This paper suggests a mechanism of solution and passivation of iron in neutral solution in the presence of a surface oxide. The influence of sodium tungstate on these processes is discussed and it is shown that the oxyanion WO/sup 2 -//sub 4/ possesses electron-acceptor properties. Using the photoelectric data the authors make an estimate of the quantity of tungstate ion adsorbed on the oxide surface for a protective concentration of the inhibitors. If the centers of preferential adsorption are anion vacancies, the minimal quantity of adsorbed tungstate giving complete protection corresponds to the initial concentration of vacancies in the absence of the inhibitor.

• Research Organization: Institute of Physical Chemistry, Academy of Sciences
• OSTI ID: 5283482
• Journal Information: Prot. Met. (Engl. Transl.); (United States), Vol. 21:6
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
IRON ALLOYS
ANODIZATION
TUNGSTATES
ADSORPTION
PHOTOELECTRIC EFFECT
BINDING ENERGY
CORROSION INHIBITORS
ELECTROCHEMICAL CORROSION
ELECTROMOTIVE FORCE
ELECTRONS
IRON
OXIDATION
SODIUM COMPOUNDS
SODIUM SULFATES
VACANCIES
VALENCE
ALKALI METAL COMPOUNDS
ALLOYS
CHEMICAL COATING
CHEMICAL REACTIONS
CORROSION
CORROSION PROTECTION
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DEPOSITION
ELECTROCHEMICAL COATING
ELECTROLYSIS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY
FERMIONS
LEPTONS
LYSIS
METALS
OXYGEN COMPOUNDS
PHOTOELECTROMAGNETIC EFFECTS
POINT DEFECTS
SORPTION
SULFATES
SULFUR COMPOUNDS
SURFACE COATING
TRANSITION ELEMENTS
360105* - Metals & Alloys- Corrosion & Erosion
360104 - Metals & Alloys- Physical Properties