Different Corrosion Prevention Methods to Consider
Corrosion. It is one of the most common things that occur to any metal. It is a natural process where metals are exposed to moisture and other gases, chemicals, or other elements. It can affect the functionality and character of products made of metal.
But know that corrosion can be prevented. There are known methods that help stop it from occurring. Depending on the circumstances of the metal being corroded, here are the procedures to consider.
One typical example of cathodic protection is galvanising or the coating of iron alloy steel with zinc. Since zinc is a more volatile metal compared to steel, when it is corroded, it gets oxidised hindering the corrosion of the steel. Such method was called by its name because it acts by making the steel the electrochemical cell’s cathode. It is mostly utilised in steel pipelines that transport fuel or water, water heater tanks, offshore oil platforms, and ship hulls.
The compounds that react with the surrounding gases or the exterior of the metal to hinder electrochemical reactions that lead to corrosion are called corrosion inhibitors. They function once they are applied to the surface of a specific metal, forming a protective layer. Such inhibitors can be applied as a protective layer or a solvent using dispersion systems. Called passivation, it is the method of implementing corrosion inhibitors.
Here are some of the common types of corrosion inhibitors:
Anodic inhibitor operates uniquely by creating an oxide film on the metal’s exterior.
Cathodic inhibitor slows down cathodic reaction or selectively precipitate on cathodic regions, restricting the diffusion of the metal surface’s eroding elements.
Mixed inhibitor reduces both the anodic and cathodic reactions. Silicates and phosphates are the most commonly used mixed inhibitors for corrosion prevention in domestic water softeners.
Volatile Corrosion Inhibitor is used to counterbalance acidic carbon dioxide or change exterior pH towards less corrosive and acidic rates, especially in boilers.
It is known that what causes corrosion is the chemical reaction between a metal and the gases existing in the surrounding environment. To reduce such unwanted environmental reactions, steps must be taken to regulate the environment. Such steps include reducing exposure to rain or seawater, or other complicated measures. These include regulating the quantities chlorine, oxygen, and sulphur present in the environment.
Rust Preventive Coating
Among the many ways of preventing corrosion, rust preventive coating application is the most budget-friendly. They act as a shield to hinder electrochemical charges coming from a specific corrosive solvent from transferring to the metal.
If you want to learn more about the different corrosion prevention methods, contact Unituffglobal.com today!
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