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The influence of the cadmium complex of nitrilo-tris-methylenephosphonic acid and electrochemical behavior of low-carbon steel in neutral aqueous media containing chloride ionsстатья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 20 февраля 2024 г.
- Авторы: Kazantseva I.S., Chausov F.F., Lomova N.V., Vorob’yov V.L.
- Журнал: Protection of Metals and Physical Chemistry of Surfaces
- Том: 59
- Номер: 3
- Год издания: 2023
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 493
- Последняя страница: 503
- DOI: 10.1134/S2070205123700454
- Аннотация: The potentiodynamic method was used to study the influence of the cadmium complex ofnitrilo-tris-methylenephosphonic acid Na4[Cd(H2O)N(CH2PO3)3]·7H2O on the corrosion-electrochemical behavior of low-carbon steel in neutral aqueous media in the presence of Cl ions-. The composition and structure of passive films formed at different potentials and composition of the medium were studied by X-ray photoelectron spectroscopy with layer-by-layer etching. When the content of Cl– ions up to 20 mg/dm3 Na4[Cd(H2O)N(CH2PO3)3]·7H2O at a concentration of 0.025–1.00 g/dm3 acts as a corrosion inhibitor, reducing the current density of anodic dissolution of the metal, and, at a concentration of more than 1.00 g/dm3, encouraging corrosion. The minimum corrosion rate is achieved at a concentration of Na4[Cd(H2O)N(CH2PO3)3]·7H2O 0.15 g/dm3 regardless of the concentration of Cl– ions. At Cl– ion concentrations of 50 mg/dm3 and more, Na4[Cd(H2O)N(CH2PO3)3]·7H2O is ineffective as a corrosion inhibitor.
- Добавил в систему: Чаусов Фёдор Фёдорович