Corrosion and Corrosion Protection Strategies in the Marine Environment

A Special Issue of Corrosion and Materials Degradation (ISSN 2624-5558).

Deadline for manuscript submissions: closed (30 July 2026) | Viewed by 12446

Editors


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Department of Electrochemical Engineering and Thermodynamics, Faculty of Chemistry and Technology, University of Split, Ruđera Boškovića 35, 21000 Slit, Croatia
Interests: corrosion; corrosion protection; electrochemical methods; environmental engineering
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Laboratory of Engineering Sciences for the Environment (LaSIE), Université de La Rochelle, La Rochelle, France
Interests: corrosion of steels in natural environments; biocorrosion; corrosion in the marine environment; cathodic protection
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Special Issue Information

Dear Colleagues,

Seawater plays an essential role in various human activities such as transportation, exploration of natural resources, energy production, water supply, food, etc. Saltwater covers more than 70% of the Earth's surface (approximately 1,335,000,000 cubic kilometers) and is generally considered the most corrosive of all natural environments. Therefore, marine environments pose a major challenge to metallic materials due to a variety of factors such as high salinity, water velocity, temperature, and biological activity. In addition, human and industrial activities lead to climate change and pollution of seawater, which further increases the aggressiveness of the marine environment. Corrosion is a major cause of deterioration in marine and offshore structures which results in structural failure, leakage, product loss, environmental pollution, and even the loss of human life. Therefore, this Special Issue is focused on gathering a list of scientific papers on the topic of corrosion in the marine environment, the influence of climate change and pollution on marine corrosion, development and characterization of advanced high-resistance materials, and the application of different methods for corrosion protection in harsh marine corrosion environments.

Prof. Dr. Ladislav Vrsalović
Prof. Dr. Philippe Refait
Guest Editors

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Keywords

  • metals and alloys
  • corrosion
  • corrosion protection
  • passive films
  • electrochemical methods
  • marine environment

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Published Papers (4 papers)

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Research

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21 pages, 3274 KB  
Article
Cathodic Protection of Carbon Steel in the Tidal Zone: Characterization of the Mineral Layer Formed on the Steel Surface
by Clément Genin, Marc Jeannin, Anne-Marie Grolleau, René Sabot and Philippe Refait
Corros. Mater. Degrad. 2026, 7(3), 45; https://doi.org/10.3390/cmd7030045 - 24 Jul 2026
Viewed by 399
Abstract
The efficiency of cathodic protection in the tidal zone, in particular in its highest part, remains questionable. To address this problem, experimental vertical structures were designed and set in a commercial seaport. Each structure was composed of 10 cm × 10 cm carbon [...] Read more.
The efficiency of cathodic protection in the tidal zone, in particular in its highest part, remains questionable. To address this problem, experimental vertical structures were designed and set in a commercial seaport. Each structure was composed of 10 cm × 10 cm carbon steel coupons and 50 cm × 10 cm carbon steel strips to obtain a 5.1 m long continuous structure extending all along the tidal zone. Cathodic protection of the structures was carried out with an Al-Zn-In galvanic anode permanently immersed in seawater. The mineral layers formed on the coupons after 32 and 52 months were analyzed by XRD and µ-Raman spectroscopy. The evolution of the mineral layer from the low water zone to the splash zone was due to (i) the decreasing efficiency of the cathodic protection and (ii) the changes in corrosion processes, from those typical of a permanent immersion to those typical of atmospheric corrosion. In particular, brucite Mg(OH)2 was found up to the high tide zone and, in agreement with the estimated degradation of the coupons, its formation was an indicator of the altitude at which the cathodic protection remained efficient. Full article
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19 pages, 1496 KB  
Article
An Evidence-Based Framework for the Sustainable Rehabilitation of Corrosion-Damaged Historic Marine Structures
by Tamim A. Samman and Ahmed Gouda
Corros. Mater. Degrad. 2026, 7(1), 4; https://doi.org/10.3390/cmd7010004 - 29 Dec 2025
Cited by 1 | Viewed by 1522
Abstract
This paper presents a validated, data-driven framework for the sustainable rehabilitation of corrosion-damaged marine infrastructure, demonstrated through a comprehensive study on a historic coastal structure. The implemented three-phase methodology—integrating advanced condition assessment, evidence-based intervention design, and rigorous performance validation—successfully addressed severe chloride-induced deterioration. [...] Read more.
This paper presents a validated, data-driven framework for the sustainable rehabilitation of corrosion-damaged marine infrastructure, demonstrated through a comprehensive study on a historic coastal structure. The implemented three-phase methodology—integrating advanced condition assessment, evidence-based intervention design, and rigorous performance validation—successfully addressed severe chloride-induced deterioration. Diagnostic quantification revealed that 30% of the primary substructure was severely compromised, with chloride concentrations reaching 1.94% by weight (970% above the corrosion threshold) and half-cell potential mapping confirming a >90% probability of active corrosion in critical elements. Guided by this data, a synergistic intervention combining galvanic cathodic protection, high-performance coatings, and structural strengthening was deployed. Post-repair validation confirmed exceptional outcomes: a complete electrochemical repassivation (potential shift from −385 mV to −185 mV), a 97.3% reduction in chloride diffusion rates, a 250% increase in surface resistivity, and the restoration of structural capacity to 115% of design specifications. The framework achieved a 65% reduction in projected lifecycle costs while establishing a new paradigm for preserving marine infrastructure through evidence-based, multi-mechanism strategies that ensure long-term durability and economic viability. Full article
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16 pages, 5905 KB  
Article
Corrosion Behavior of Ti and Ti6Al4V Alloy in Brackish Water, Seawater, and Seawater Bittern
by Ladislav Vrsalović, Senka Gudić, Antonia Talijančić, Jelena Jakić, Jure Krolo and Iman Danaee
Corros. Mater. Degrad. 2024, 5(4), 641-656; https://doi.org/10.3390/cmd5040031 - 19 Dec 2024
Cited by 15 | Viewed by 6266
Abstract
Ti and Ti6Al4V alloy are extensively utilized in structural parts in engineering applications and the production of medical implants due to their excellent mechanical properties, lightweight, and high corrosion resistance. This study comprehensively evaluates their corrosion behavior in three challenging aquatic environments: brackish [...] Read more.
Ti and Ti6Al4V alloy are extensively utilized in structural parts in engineering applications and the production of medical implants due to their excellent mechanical properties, lightweight, and high corrosion resistance. This study comprehensively evaluates their corrosion behavior in three challenging aquatic environments: brackish water, seawater, and seawater bittern. Utilizing open circuit potential (EOC) measurements with polarization techniques (linear and potentiodynamic) and electrochemical impedance spectroscopy (EIS) measurements, the research highlights distinct environmental influences on corrosion performance. Notably, Ti and Ti6Al4V alloy demonstrated exceptional stability with the highest polarization resistance and lowest corrosion current in brackish water, while seawater bittern presented the most demanding condition for Ti6Al4V. Additionally, the analysis of the electrode surfaces after polarization measurements using optical microscopy, optical profilometry, and SEM/EDS tests revealed minor damage, indicating the high corrosion resistance of these materials. This study advances the understanding of Ti and Ti6Al4V alloy performance in diverse environments and offers valuable insights for optimizing their use in harsh aquatic conditions, particularly for applications requiring durability and longevity. Full article
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Review

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12 pages, 643 KB  
Review
Long-Term Marine Corrosion Under the Influence of Microbiologically Influenced Corrosion and Calcareous Conditions
by Robert E. Melchers
Corros. Mater. Degrad. 2025, 6(4), 46; https://doi.org/10.3390/cmd6040046 - 25 Sep 2025
Cited by 3 | Viewed by 2210
Abstract
Calcareous deposits on and within corrosion products tend to inhibit the (abiotic) corrosion of steels in seawater. Herein, it was considered whether this inhibition effect extends to microbiologically influenced corrosion (MIC) for extended (long-term) exposure periods. Quantitative estimates of corrosion rates were made [...] Read more.
Calcareous deposits on and within corrosion products tend to inhibit the (abiotic) corrosion of steels in seawater. Herein, it was considered whether this inhibition effect extends to microbiologically influenced corrosion (MIC) for extended (long-term) exposure periods. Quantitative estimates of corrosion rates were made from reported observations for 46 iron and steel shipwrecks, and other iron and steel objects immersed in seawater at various depths and for extended periods (many around 60 years and some up to 160 years). The observations are correlated with observations of the occurrence of calcareous deposits and information about dissolved inorganic nitrogen (DIN), a critical micronutrient for MIC. The results show that calcareous deposits can inhibit both long-term abiotic corrosion and long-term corrosion influenced by conditions suitable for MIC. The practical implications are briefly reviewed. Full article
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