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- Title
Monitoring and Evaluation of the Corrosion Behavior in Seawater of the Low-Alloy Steels BVDH36 and LRAH36.
- Authors
Mazilu, Adrian; Benea, Lidia; Axente, Elena Roxana
- Abstract
The purpose of this study is to evaluate the corrosion resistance in natural seawater (Năvodari area) of two types of low-alloy carbon steels BVDH36 and LRAH36 by electrochemical methods. The electrochemical methods used were the evolution of the free potential (OCP), electrochemical impedance spectroscopy (EIS), polarization resistance (Rp) and corrosion rate (Vcorr), potentiodynamic polarization (PD), and cyclic voltammetry (CV). The studies were completed by ex situ characterization analyzes of the studied surfaces before and after corrosion such as: optical microscopy, scanning electron microscopy and X-ray diffraction analysis. The results of the study show us that the polarization resistance of the low-alloy carbon steel BVDH36 is higher compared to the polarization resistance of the low-alloy carbon steel LRAH36. It is also observed that with the increase in the immersion time of the samples in natural seawater, the polarization resistance of the BVDH36 alloy increases over time and finally decreases, and for the carbon steel LRAH36 the polarization resistance increases.
- Subjects
LOW alloy steel; ARTIFICIAL seawater; BEHAVIORAL assessment; SEAWATER corrosion; CARBON steel; IMPEDANCE spectroscopy
- Publication
International Journal of Molecular Sciences, 2024, Vol 25, Issue 12, p6405
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms25126405