Corrosion of Materials in Surface Seawater after 12 and 18 Months of Exposure

Abstract

A total of 1150 specimens of 189 different alloys were completely immersed in surface seawater for 12 and 18 months to obtain data for comparison with deep ocean corrosion data. Corrosion rates, types of corrosion and pit depths were determined. Some highly alloyed nickel alloys, titanium alloys, silicon cast irons, specialty stainless steels, columbium, tantalum and tantalum-tungsten alloy were uncorroded in seawater both at the surface and at depth.