How Does The Process Of Corrosion Happen?

Corrosion happens when a piece of metal, especially iron, is exposed to moisture. It is due to constant exposure to adverse atmospheric conditions and direct contact between the piece of metal and the various environmental changes that take place. Iron atoms deteriorate or get corroded because their intrinsic properties are not adequately suited to undergo oxidation. Constant exposure to oxygen (which is a major element in the atmosphere) and water does result in electrochemical corrosion of metal.

Electrochemical corrosion of a metallic surface due to constant contact between the metal and the atmospheric moisture is known in layman's terms as rust and it is reddish-brown in colour. Corrosion results in the metal rusting and the by-product of the process of corrosion could be in the form of oxides and/or salts of the metal. Ceramic undergoes corrosion due to exposure to the harsh ultraviolet rays of the sun and the result is the discolouration of the ceramic surface, the dissolution of the ceramic particles and the weakening of the ceramic polymers.

Corrosion refers to the geological phenomenon describing the deterioration of metallic substances as well as other materials by means of chemical reaction. The metallic corrosion is the most common phenomenon in which there is an exchange of electrons among two substances, among them one is metallic one. In general, the process combines metal to lose electron and gets oxidized, on the other hand, the other substance gains electrons, hence reduced. This affirms why the corrosion also known as redox process.

Mostly all the metals react with the oxygen, whereas it is the fact that not all the metals get corroded. Many metals react, but the rate of reaction subject to corrosion is infinitesimally small and hence insignificant. In general, both the presence of oxygen as well as water is mandatory for the corrosion to occur. It seems that the desert area is not as susceptible to the occurrence of corrosion as the wet areas.

Unlike the other redox processes, corrosion is basically a devastative process including a significant financial loss as well. For example, in United States, the amount spent to recover the damages done by the corrosion is about $200 billion per year in average.

Corrosion refers to the loss of electrons of metals when they react with water and oxygen which results in deterioration of their properties. One common example of corrosion is weakening of iron because of oxidation of iron atoms that form rush. It mostly happens in metallic materials when they are exposed to water and oxygen. It can be prevented by surface treatments like Applied coating,Reactive coatings, Anodization etc.

Leaves the graphite in place, resulting in a soft weak metal