Accession Number:

AD0412499

Title:

GALVANIC PROTECTION BY METAL SPRAY METHOD,

Descriptive Note:

Corporate Author:

ROCK ISLAND ARSENAL ILL

Personal Author(s):

• Knanishu,J.

Report Date:

1963-03-31

Pagination or Media Count:

48.0

Abstract:

The metal flame-spray method of application was used to develop techniques, whereby bi-metal junctions may be treated with an optimum coating to combat galvanic corrosion. Steel, aluminum, and magnesium panels, and steel, aluminum, magnesium, stainless steel, and copper buttons were used in making up the corrosion couples. A successful procedure to produce reliable adhesion was developed. Where good adhesion procedures were maintained, excellent galvanic corrosion resistance resulted. Pure tin metal sprayed coatings proved superior, generally, to aluminum 5056 metal-sprayed coatings as a guard against galvanic corrosion. Correspond ing test panels were exposed in the 5 salt spray fog cabinet and outdoors. There was a correla tion between the results obtained in the salt spray fog test and the outdoor test. Author

Descriptors:

• *CORROSION
• STEEL
• ALUMINUM
• MAGNESIUM
• COPPER
• CORROSION
• ADHESION
• TIN
• PROTECTION

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE