The effect of synthetic scrubber solution chemistry on the corrosion behavior of type 316L stainless steel and Titanium Grade 2
A laboratory study was performed to investigate the effects of major solution variables of synthetic scrubber environments on the corrosion behavior of Type 316L Stainless Steel and Titanium Grade 2. The synthetic solution was calcium-based and contained magnesium, sodium, sulfate, chloride and fluoride. In solution preparation, it was found that the amount of sulfuric acid needed to achieve pH 1 was dependent on the chloride concentration. However, when the pH was adjusted to 1 prior to adding halides, the pH was found to decrease with increasing chloride concentration, whereas an increase in pH with increasing chloride concentration was observed when the initial pH was 4. When the pH was held constant, the corrosion rates of both the stainless steel and titanium decreased considerably with increasing chloride concentration above 30,000 ppm chloride. However, when the acid concentration was held constant, the corrosion rates of both alloys increased with increasing chloride concentration. Finally, corrosion rates decreased dramatically with increasing pH. An explanation of these observations is presented in terms of common ion effects and hydrogen ion activity.
- Research Organization:
- Battelle
- OSTI ID:
- 5219048
- Journal Information:
- Proc. - Electrochem. Soc.; (United States), Vol. 83-5
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
STAINLESS STEEL-316L
CORROSION
TITANIUM ALLOYS
BENCH-SCALE EXPERIMENTS
CALCIUM COMPOUNDS
CHEMICAL REACTIONS
CHLORIDES
CORROSIVE EFFECTS
FLUORIDES
IONS
MAGNESIUM COMPOUNDS
PH VALUE
SODIUM COMPOUNDS
SOLUTIONS
SULFATES
SULFURIC ACID
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
CHARGED PARTICLES
CHLORINE COMPOUNDS
CHROMIUM ALLOYS
CORROSION RESISTANT ALLOYS
DISPERSIONS
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
IRON ALLOYS
IRON BASE ALLOYS
MIXTURES
OXYGEN COMPOUNDS
STAINLESS STEELS
STEELS
SULFUR COMPOUNDS
360105* - Metals & Alloys- Corrosion & Erosion