Protective coating of ferrous base metal articles

Details Protective coating of ferrous base metal articles Protective coating of ferrous base metal articles

1974-12-13

1976-05-04

Kendall, Ralph S.

Metal treatment

Compositions

Heat treating

148 615R, 148 6, 427 11, 427126, C23C 704

Patent

active

039545121

ABSTRACT:
Iron, steel, and iron base alloys are provided with coatings made by forming an adherent oxide layer on the surface, treating the oxide layer with at least one Group III metal, then oxidizing the Group III metal, after which the oxidized Group III metal is treated with pyrochlore-microlite mineral. The coatings are useful for providing corrosion and oxidation resistance, particularly at elevated temperatures.

REFERENCES:
patent: 3700505 (1972-10-01), Kanter
patent: 3883370 (1975-05-01), Kanter

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