Influence of boric acid coatings on the oxidation of 2. 25Cr-1Mo steel in oxygen

Journal Article · Mon May 01 04:00:00 EDT 1989 · Corrosion (Houston); (USA)

DOI:https://doi.org/10.5006/1.3582037· OSTI ID:5373773

Simms, N J ^[1]; Little, J A ^[2]

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1. British Coal, Coal Research Establishment, Stoke Orchard, Cheltenham (GB)
2. Cambridge Univ. (UK). Dept. of Metallurgy and Materials Science

The oxidation of samples of 2.25Cr-1Mo steel covered with boric oxide in dry flowing oxygen has been studied at 600{sup 0}C. For all times up to 100 hours of exposure, the steel with a borate layer at the original metal-oxygen interface gains less weight than an untreated specimen. The presence of boron also modifies the grain structure of the magnetite layer formed, giving a fine equiaxed microstructure with less porosity.

• OSTI ID: 5373773
• Journal Information: Corrosion (Houston); (USA), Journal Name: Corrosion (Houston); (USA) Vol. 45:5; ISSN 0010-9312; ISSN CORRA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360105* -- Metals & Alloys-- Corrosion & Erosion
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ALLOYS
BORIC ACID
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
COATINGS
CORROSION INHIBITORS
CRYSTAL STRUCTURE
ELEMENTS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
INTERFACES
IRON ALLOYS
IRON BASE ALLOYS
IRON COMPOUNDS
IRON ORES
IRON OXIDES
KINETICS
MAGNETITE
MICROSTRUCTURE
MINERALS
MOLYBDENUM ALLOYS
NONMETALS
ORES
OXIDATION
OXIDE MINERALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
POROSITY
PROTECTIVE COATINGS
REACTION KINETICS
STEELS
TRANSITION ELEMENT COMPOUNDS