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Report on Relative Corrosivity of Atmospheres at Various Distances from the Seacoast

January 1980

By: J. D. Morrison 

Abstract

This report presents the results of a study of the effects of distance from the ocean on the atmospheric corrosion of carbon steel. It also documents the salt deposition rates on the various samples. Twelve month exposures were conducted starting every month for 23 months. Six exposure sites were used. The closest exposure site was only 100 feet from the ocean. The farthest site was 50 miles from the ocean. The results show that both corrosion rates and salt deposition rates are clearly related to distance from the ocean, and the rate of corrosion at 100 feet from the ocean is more than twice the rate at 800-2500 feet. Exposures at distances of more than ½ mile from the ocean resulted in approximately the same corrosion rate.

For additional information, a complete copy of this study is available as NASA-KSC Report MTB 099-74.  Send requests for copies to corrosion@ksc.nasa.gov.

To download a full copy of this report in Adobe's pdf format for local printing, click 099-74.pdf.  (0.9MB)

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