The environmental conditions leading to pitting and crevice corrosion have been measured for a typical 12% Cr low-pressure steam turbine blade material in chloride solutions at 80 C. For the particular geometry used, no pitting and no crevice corrosion occurs only in deaerated solutions containing a chloride ion concentration less than about 2 × 10−4 N. Comparison with previous studies showed that the severity of the corrosion conditions depend on the experimental geometry.

Subject
Pits, Geometry, Chloride ion concentration, Sodium chloride, Chloride solutions, Crevices, Sodium chloride solution, Crevice corrosion, Steel, Pitting, Protection potential, Corrosion potential, Electrode potential
National Association of Corrosion Engineers
1983
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