Dear Colleagues,

Metals are found in a combined form called ore. Ore is in a low-energy state. By applying a large amount of energy, metals are extracted from ores, which possess high energy in an unstable state. These metals have a tendency to attain a low-energy state (combined form) by reacting with the elements existing in the surrounding environment leading to corrosion. Corrosion is nothing but metal destruction due to its exposure to electrolytes, such as soil, and moisture through chemical or electrochemical reactions. It is a slow, steady, and irreversible process affecting the physical as well as the chemical properties of the metal. Corrosion is induced by chemical and electrochemical processes. There are two types of corrosion, namely, dry and wet; dry corrosion takes place in dry gases and non-conductive liquids where there is no current/electron flow, whereas wet corrosion takes place in metal in the presence of electrolytes. Corrosion is a natural process that occurs at the metal–electrolyte interface and significantly reduces the lifetime of metals. Metals are broadly utilized in modern society because of their excellent mechanical properties and their ability to withstand different conditions. Various acids have been utilized for descaling, derusting, pickling, and cleaning a variety of metal surfaces and equipment in industries. A recognizable strategy to combat corrosion is by employing corrosion inhibitors (natural or synthetic). The incredible mitigating effect of an inhibitor is strengthened by the existence of heteroatoms, aromatic rings, and π-electrons, which assist its adsorption on the surface of metal. These inhibitors have a tendency to mitigate corrosion by forming various kinds of protective films via adsorption, forming precipitates, or forming an inactive layer on a metal surface. Most inhibitors inhibit the corrosion process by developing an invisible protective film on the surface of metal. Electron pair and negatively charged ions from the inhibitors are transferred to the d orbital of the metal, forming coordination complexes and acting as a barrier to block the exposure of the metal to the aggressive environment. Metal corrosion is a major issue due to its negative impact on economics, society, and the health and safety of people. Hence, there is an alarming need to address this issue, and modern materials and methods to mitigate corrosion need to be discussed.

This Special Issue on the mentioned theme will represent a common forum for research findings from around the world addressing solutions for challenges and issues relating to metal corrosion. We kindly invite you to submit your research contributions, including full papers, communications, and reviews, to this Special Issue.

Dr. Mayakrishnan Prabakaran
Guest Editor

Manuscript Submission Information

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• Corrosion inhibition
• Metals
• Coatings
• Marine corrosion and microbial corrosion
• Coatings for reinforcement in concrete
• Corrosion inhibitors in concrete
• Surface engineering
• Surface chemistry
• Electrochemistry
• Spectroscopy