Corrosion in Nuclear Powered Steam Generators

Corrosion and tube failures can produce severe consequences, including [Pg.266]

Certain Inconel alloys have been used with varying degrees of success. Inconel 600 (70% Ni, 15% Cr, 15% Fe) has been employed because of its improved resistance to chloride-induced, SCC, but it has failed on occasions because of intergranular attack and general etch corrosion. [Pg.266]

Various newer and more corrosion-resistant alloys are now available for use, including low nickel alloys, such as Inconel 800 (35% Ni, 20% Cr, 45% Fe). Low nickel alloys, in particular those with with less than 0.03% cobalt, are required to limit the development of a cobalt-induced, outer-core radiation field within the SG. [Pg.266]

Deposit material Mineral/formula Problem or risk [Pg.267]

Calcium carbonate Aragonite CaC03 Low temperature scale. [Pg.267]

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