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Electrochemical Features of Steel Corrosion in Tropical Seawater
https://doi.org/10.31615/j.corros.prot.2024.112.2-3
Abstract
The corrosion rates of carbon and stainless steels in tropical seawater determined using methods of linear polarization resistance, zero resistance amperometry, potentiometry and gravimetry. Research was carried out with steels used in shipbuilding, both carbon and stainless. The experimental methods, equipment and stands used in the process of the work are described.
Measures are proposed to ensure the tropical resistance of electrochemical equipment in the splash zone at a marine stand. The concept of “tropical resistance” includes a number of indicators such as the resistance of steels to the marine atmosphere; resistance to biofouling; resistance to general and local corrosion in seawater.
The test results showed that measuring the corrosion rate of steels 30KhGSA, 08kp, St3, 08KhZ, 12KhN10T and NS-5T in tropical seawater by electrochemical methods gives more adequate results compared to the gravimetric method.
About the Authors
N. G. Anufriev
Frumkin Institute of Physical Chemistry and Electrochemistry of RAS
Russian Federation
Russian Federation
Nikolay G. Anufriev, Ph.D. in Chemistry, leading researcher,
31, Leniskiy av., Moscow, 119071.
Yu. A. Kuzenkov
Frumkin Institute of Physical Chemistry and Electrochemistry of RAS
Russian Federation
Russian Federation
Yuri A. Kuzenkov, Ph.D. in Chemistry, senior researcher,
31, Leniskiy av., Moscow, 119071.
References
1. Karpov, V. A., Kovalchuk, Yu. L., Poltarukha, O. P., & Ilyin, I. N. (2007). An integrated approach to protection against marine fouling and corrosion, Moscow: Partnership of Scientific Publications KMK. (in Russ.)
2. Brijder R., Hagen, C. H. M., Cortés, A. and others. (September 19, 2022). Review of corrosion monitoring and prognostics in offshore wind turbine structures: Current status and feasible approaches. Frontiers Energy Research, 10. doi:10.3389/fenrg.2022.991343
3. Anufriev, N.G. (2012). New possibilities for using the linear polarization resistance method in corrosion research and practice. Corrosion: materials, protection, (1), 36-43. (in Russ.)
Review
For citations:
Anufriev N.G., Kuzenkov Yu.A. Electrochemical Features of Steel Corrosion in Tropical Seawater. Theory and Practice of Corrosion Protection. 2024;29(2):27-40. (In Russ.) https://doi.org/10.31615/j.corros.prot.2024.112.2-3
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