Sulfide corrosion of copper base alloys has been the subject of much interest and research in the past few years. Although instances of actual failures in power plants have been few, the rapid nature of the corrosive attack experienced has prompted some research on the subject.(1-8) The most common form of sulfide attack is in marine environments where marshland runoff, sewage or industrial waste are encountered. However, other instances of sulfide induced corrosion have been reported in stagnant power plant intake systems where low light and oxygen increase the activity of sulfate reducing bacteria, resulting in significant sulfide levels.

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