CORROSION OF CARBON STEEL AND SOME OTHER METALS IN FRESH WATER OF HYDRAULIC STRUCTURES (HS)

• Published in: Chemical Problems Vol. 22; no. 4; pp. 516 - 524
• Main Authors: Tahirli, H.M., Verdiev, S.C., Mammadova, S.А., Shirinov, T.I., Guliyeva, L., Museyibli, K., Adigozalova, M.N., Rustamova, S.M., Huseynova, A.S., Abbasov, G.D.
• Format: Journal Article
• Language: English
• Published: 2024
• ISSN: 2221-8688; 2522-1655
• DOI: 10.32737/2221-8688-2024-4-516-524

Using the method of gravimetric and electrochemical measurements, the corrosion rate of St3 steel in the water basins of the Takhtakerpi and Shemkirchay hydroelectric power stations has been determined. To establish the expected corrosivity of water, the chemical composition and some physicochemical parameters of the above waters have been determined. As a result of long-term measurements carried out over one year, it has established that steel in the water basins of the Takhtakerpi and Shemkirchay hydroelectric power stations corrodes at a rate of 0.04 g/m2 h and (0.07÷0.08) g/m2 h, respectively. And in the atmosphere of these hydroelectric power plants, steel corrodes at a low rate, approximately an order of magnitude lower. Analysis of water taken from these hydroelectric power stations showed a very low content of corrosive ions, the concentration of which, especially in the Shemkirchay reservoir, corresponds to spring water. By taking polarization curves it has been established that the rate of steel corrosion is controlled by the concentration of dissolved oxygen in water