Кафедри
Постійне посилання на розділhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/35393
Переглянути
3 результатів
Результати пошуку
Документ Investigation of heat resistance of metal oxide coatings on AISI 304 stainless steel(2021) Shtefan, V. V.; Balamut, Nataliia; Kanunnikova, Nadiia; Kuznietsova, Anastasiia; Zuyok, Valeriy; Rostova, HannaSynthesized cathode Cr·CrOx and anodic FeOx metal oxide coatings on AISI 304 stainless steel. Their morphology and elemental composition have been studied. It was found that chromium-based oxide coatings increase the heat resistance of steel by 2-8 times and are resistant to temperatures of 1000 °C.Документ Anodic dissolution of stainless steel in acid solutions(Таврійський національний університет ім. В. І. Вернадського, 2019) Shtefan, V. V.; Kanunnikova, Nadiia; Leshchenko, S. A.; Balamut, NataliiaIn this work, the kinetics of anodic dissolution of stainless steel was studied using linear voltammetry. It is shown that an increase in the concentration of molybdates leads to an increase in anodic currents and an expansion in the region of active dissolution, which indicates that the oxoanions of the steel surface are passivated. The influence of electrolyte composition on the formation of a passive film was investigated. It has been established that at high potential sweep rates, dense layers of stoichiometric oxide do not have time to form and the passive film has a defective structure. Molybdenum-, zirconium-, aluminum-, titanium-containing compounds have been shown to increase the passivity area, which is the basis for the formation of protective oxide films on stainless steel.Документ Influence of chloride on the anode dissolution of aisi 304 steel(Sp. z o.o. "Diamond trading tour", 2018) Shtefan, V. V.; Kanunnikova, Nadiia; Balamut, Nataliia; Bofanova, MariiaThe kinetics of anodic dissolution of stainless steel in acidic sulphate-chloride solutions was studied. The regularities of changes in the electrochemical parameters (stationary potential, passivation potential, passivation current density, transpassivation potential) with varying concentration of NaCl are established.