Pitting resistance of 06KhN28MDT alloy in chloride-containing media

A phenomenological model of the dependence of the critical temperature of pitting formation in 06KhN28MDT (ÉI 943) alloy on its heterogeneity in a chloride-containing medium has been developed. Based on the results of our investigations and analysis of the available literature data, we propose to us...

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Bibliographic Details
Published in:Materials science (New York, N.Y.) N.Y.), 2008-07, Vol.44 (4), p.573-580
Main Authors: Narivs’kyi, O. E., Belikov, S. B.
Format: Article
Language:English
Subjects:
Alloy development
Characterization and Evaluation of Materials
Chemistry and Materials Science
Chlorides
Corrosion resistance
Critical temperature
Heterogeneity
Materials Science
Mathematical models
Nonmetallic inclusions
Pitting (corrosion)
Solid Mechanics
Structural Materials
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Summary:A phenomenological model of the dependence of the critical temperature of pitting formation in 06KhN28MDT (ÉI 943) alloy on its heterogeneity in a chloride-containing medium has been developed. Based on the results of our investigations and analysis of the available literature data, we propose to use the quantitative volume of nonmetallic inclusions V taking part in the pitting formation in the alloy as an index of its heterogeneity. We have established a linear dependence between the critical temperature of pitting formation in this alloy and the index V in a chloridecontaining medium. Using the results of regression analysis, we have obtained mathematical dependences of the critical temperature of pitting formation on f ( V ) for aqueous solutions with pH from 4 to 8 and chloride concentrations of 350, 400, 500, 550, and 600 mg/liter.
ISSN:1068-820X
1573-885X
DOI:10.1007/s11003-009-9107-5