The Effect of Ferrous Sulfate on Sulfide-Induced Corrosion of Copper-Base Condenser Alloys in Aerated Seawater

摘要

Exposures were conducted for 30, 60, and 90 days in aerated seawater with and without continuous addition of 0.05 milligram per liter sulfide ion and 0.10 milligram per liter ferrous ions from ferrous sulfate on Alloys C70600 (90-10 copper-nickel), C71500 (70-30 copper-nickel), C72200 (85-15 copper-nickel plus chromium), and C68700 (aluminum brass). All alloys were susceptible to sulfide-induced corrosion. The ferrous sulfate was sufficient to completely counteract the sulfide-induced corrosion of all alloys except Alloy C72200.