Corrosion inhibited metal

Details Corrosion inhibited metal Corrosion inhibited metal

1985-08-29

1987-07-21

Buffalow, Edith

Stock material or miscellaneous articles

Composite

Of metal

428658, 428666, B32B 1504

Patent

active

046818146

ABSTRACT:
A metal surface is passivated, or rendered resistant to corrosion, by a dense, intimately adherent overlayer of an insoluble, non-reactive compound comprised of an organic compound complexed with the surface layer of metal of the underlying substrate. The overlayer is formed by first forming a thin oxide layer on the substrate, such as by anodization, and then treating the substrate by anodically depositing and concurrently reacting the complex-forming organic compound. Preferably, the substrate is steel, the anodization and treating baths are borate solutions, and the organic compound is 8-hydroxyquinoline.

REFERENCES:
patent: 4493876 (1985-01-01), Birkett et al.
patent: 4497877 (1985-02-01), Krijl et al.
J. Electrochemical Soc., "Behavior of Salicyladoxime and 8-Hydroxyquinoline at a Copper Electrode," Nioki et al., vol. 122, 855 (1975).
Mater. Prot. Perform., "Chelation Compds. as Cooling Water Corrosion Inhibitors," Weisstuch et al., vol. 10(4), 11 (1971).

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