Stress-Corrosion Fracture of 12Kh18AG18Sh Steel in Chloride-Containing Media with Copper Cations

We studied the corrosion and corrosion-mechanical resistance of new austenitic high-nitrogen 12Kh18AG18Sh steel for the retaining rings of turbogenerators in aqueous solutions containing chlorides and copper (II) cations. A significant decrease in the corrosion resistance of this steel (P constitute...

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Bibliographic Details
Published in:Materials science (New York, N.Y.) N.Y.), 2003-09, Vol.39 (5), p.629-633
Main Authors: Balyts'kyi, O I, Krokhmal'nyi, O O, Ripei, I V
Format: Article
Language:English
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Summary:We studied the corrosion and corrosion-mechanical resistance of new austenitic high-nitrogen 12Kh18AG18Sh steel for the retaining rings of turbogenerators in aqueous solutions containing chlorides and copper (II) cations. A significant decrease in the corrosion resistance of this steel (P constitutes 0.52-14.50 mm/year) and in its resistance to corrosion cracking and corrosion-fatigue fracture in CuCl2 solutions was established. We also calculated the coefficients of linear parts of the kinetic diagrams of fatigue fracture of the steel under study in air with a humidity of 40% and in 22% NaCl and CuCl2 solutions.
ISSN:1068-820X
1573-885X
DOI:10.1023/B:MASC.0000023501.28238.1f