Corrosion failure 90/10 cupronickel tubes in a desalination plant

This paper presents finding of a failure investigation on a heat exchanger tubes in a desalination plant. Fabricated from Type 90-10 copper-nickel alloy, the tubes experienced sever corrosion after one year of operation. Leaks were observed due to pitting attack requiring repairs and eventual replacement of the cupronickel tubes. The cause of the failure was determined by conducting a physical inspection, and performing macro and micro...