The oxidation of samples of 2.25Cr-1Mo steel covered with boric oxide in dry flowing oxygen has been studied at 600°C. At all times up to 100 hours of exposure the steel with a borate layer occurring 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.

Subject
Acids, Chemical compounds, Coatings, Iron oxide, Oxide layers, Metal oxides, Weight gain, Boron, Oxide surfaces, Steel, Oxygen, Alloys, Oxidation
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1988
Association for Materials Protection and Performance (AMPP)
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