Effect of Nitrate on the Repassivation Potential of Alloy 22 in Chloride-Containing Environments
| Autor: | S. R. Gordon, Kenneth J. King, G. E. Gdowski, H. A. Elayat, G. O. Ilevbare, T. S.E. Gdowski |
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| Rok vydání: | 2005 |
| Předmět: |
Molality
Passivation Renewable Energy Sustainability and the Environment Alloy Inorganic chemistry Analytical chemistry Electrolyte engineering.material Condensed Matter Physics Chloride Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound Nitrate chemistry Materials Chemistry Electrochemistry medicine engineering medicine.drug |
| Zdroj: | Journal of The Electrochemical Society. 152:B547 |
| ISSN: | 0013-4651 |
| Popis: | The study of Alloy 22 was undertaken in several selected nitrate/chloride (NO{sub 3}{sup -}/Cl{sup -}) electrolytes with chloride concentrations [Cl{sup -}] of 1.0, 3.5 and 6.0 molal with [NO{sub 3} {sup -}]/[Cl{sup -}] ratios of 0.05, 0.15 and 0.5 at temperatures up to 100 C. Results showed that the repassivation potentials increased with increase in [NO{sub 3} {sup -}]/[Cl{sup -}] ratio and decreased with increase in temperature. The absolute [Cl{sup -}] was found to have less of an effect on the repassivation potential compared with temperature and the NO{sub 3} {sup -}/Cl{sup -}. Regression analyses were carried out and expressions were derived to describe the relationship between the repassivation potential, temperature, [Cl{sup -}] and [NO{sub 3} {sup -}] for the conditions tested. |
| Databáze: | OpenAIRE |
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