Advances and Challenges in Corrosion of Alloys and Protection Systems

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Corrosion and Protection".

Deadline for manuscript submissions: 31 May 2026 | Viewed by 1056

Special Issue Editor


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Guest Editor
Department of Metallurgy and Structural Integrity, Advanced Materials Research Center (CIMAV), Miguel de Cervantes 120, Complejo Industrial Chihuahua, Chihuahua 31136, Chihuahua, Mexico
Interests: corrosion engineering; coatings; inhibitors; cathodic protection; metallic alloys; stress corrosion cracking; failure analysis; high temperature corrosion; erosion-corrosion
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Special Issue Information

Dear Colleagues,

Corrosion is a globally important issue that significantly affects the performance and integrity of metallic alloys in industrial environments. It is estimated that the worldwide cost of corrosion accounts for about 4% of GDP, and substantial savings can be achieved through effective control methods that safeguard people, equipment, and the environment. Industries such as chemical, food, oil, petrochemical, aeronautics, mining, and nuclear rely on equipment and process lines mainly constructed from carbon steels, low-alloy steels, stainless steels, and superalloys. The operating conditions for these materials can vary widely, influenced by factors such as environmental chemistry, temperature, flow conditions, and pressure, all of which can lead to corrosion damage. Protecting metals and alloys from harsh, corrosive industrial environments requires a solid understanding of corrosion mechanisms. With this knowledge, appropriate control systems can be chosen.

This Special Issue, “Advances and Challenges in Corrosion of Alloys and Protection Systems,” will highlight the latest developments in the corrosion behavior of metallic alloys and trends in corrosion protection technologies. I am pleased to invite researchers in the field of corrosion to submit original theoretical and/or experimental articles, along with short communications and comprehensive reviews, related to (but not limited to) topics such as corrosion mechanisms, novel environmentally friendly corrosion inhibitors and passivation treatments, organic/inorganic/metallic/hybrid coatings, electrodeposition and electroless processes, and cathodic protection. I look forward to receiving your contributions.

Dr. José Guadalupe Chacón-Nava
Guest Editor

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Keywords

  • corrosion mechanisms
  • ferrous and non-ferrous alloys
  • organic, inorganic, and metallic coatings
  • green corrosion inhibitors
  • electro and electroless plating
  • cathodic protection
  • corrosion protection methods

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Published Papers (2 papers)

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Research

32 pages, 11853 KB  
Article
An Electrochemical Study of the Degradation of ASTM A210-A1, ASTM A213-T22 and ASTM A213-T91 Steels into Nitrate Salts as a Function of Temperature
by R. Felix-Contreras, C. D. Arrieta-Gonzalez, Jonathan de la Vega Olivas, A. Quinto-Hernandez, R. A. Rodriguez-Diaz, J. G. Gonzalez-Rodriguez and J. Porcayo-Calderon
Metals 2026, 16(4), 410; https://doi.org/10.3390/met16040410 - 8 Apr 2026
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Abstract
The high-temperature corrosion behavior of A1, T22, and T91 steels was investigated in molten nitrate salts at 400, 500, and 600 °C during 100 h of exposure. The combined influence of temperature and chromium content on corrosion kinetics and oxide-scale stability was evaluated [...] Read more.
The high-temperature corrosion behavior of A1, T22, and T91 steels was investigated in molten nitrate salts at 400, 500, and 600 °C during 100 h of exposure. The combined influence of temperature and chromium content on corrosion kinetics and oxide-scale stability was evaluated using open-circuit potential (OCP), linear polarization resistance (Rp), electrochemical impedance spectroscopy (EIS), scanning electron microscopy, X-ray diffraction, and cross-sectional elemental mapping. OCP measurements showed a progressive shift toward more negative potential with increasing temperature, indicating enhanced oxidation tendency. Electrochemical measurements revealed a systematic decrease in Rp and impedance magnitude as temperature increased, confirming accelerated corrosion kinetics and reduced interfacial resistance. EIS spectra exhibited two characteristic time constants associated with the outer corrosion products and the inner metal/oxide interface. Significant differences in scale growth were observed depending on alloy composition. At 600 °C, oxide thickness reached approximately 700–800 μm for A1, ~100 μm for T22, and ~10 μm for T91. Chromium-containing steels promoted the formation of a compact Cr-rich inner oxide layer that improved scale adhesion and suppressed the exfoliation phenomena observed in A1 steel. Overall, temperature controls corrosion kinetics, whereas chromium content governs oxide-scale compactness and long-term stability in molten nitrate environments. Full article
(This article belongs to the Special Issue Advances and Challenges in Corrosion of Alloys and Protection Systems)
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16 pages, 7835 KB  
Article
Influence of Y and Ca Micro-Alloying and Citric Acid on the Discharge Behavior of AZ31 Mg Alloys for Mg–Air Batteries
by Shani Abtan Bason and Guy Ben Hamu
Metals 2026, 16(1), 87; https://doi.org/10.3390/met16010087 - 13 Jan 2026
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Abstract
This study examined cast AZ31 magnesium alloy and its variant containing micro-alloying elements of Y and Ca (AZXW alloy), evaluating their potential as anode materials in magnesium–air batteries. The AZXW alloy was fabricated via two manufacturing techniques: casting and extrusion. The synergistic influence [...] Read more.
This study examined cast AZ31 magnesium alloy and its variant containing micro-alloying elements of Y and Ca (AZXW alloy), evaluating their potential as anode materials in magnesium–air batteries. The AZXW alloy was fabricated via two manufacturing techniques: casting and extrusion. The synergistic influence of Y and Ca, in conjunction with the production procedure, on the microstructure, electrochemical characteristics, and anodic discharge behavior of the examined alloys was investigated. The addition of Y and Ca results in the formation of secondary phases that affect grain size, particle size, and distribution, as well as the electrochemical performance and discharge properties of the Mg–air battery constructed for this study, over 24 h or until fully discharged. This work demonstrates the potential to enhance discharge performance and electrochemical behavior by adjusting the aqueous electrolyte solution in the battery through the incorporation of Citric Acid (C.A) at varying concentrations. The incorporation of citric acid into the aqueous electrolyte improves battery stability and specific energy as long as citric acid is present in the solution. Magnesium hydroxide (Mg(OH)2) begins to form on the anode surface as its concentration progressively decreases due to complexation with dissolved magnesium ions. This diminishes the effective anode area over time, ultimately resulting in the distinctive “knee-type” collapse characteristic of electrolytes containing citric acid. Full article
(This article belongs to the Special Issue Advances and Challenges in Corrosion of Alloys and Protection Systems)
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