Friday, July 13, 2018

The Process Of Corrosion

Elements are not found very often in a pure metal state. Instead, they are located in chemical compounds with one or more nonmetallic elements. These chemical combinations are commonly known as ore. Iron, copper, and zinc ore are three of the most common ore found in the earth’s crust.

Significant energy must be disbursed to degrade the ore to refined metal. This energy can be implemented via metallurgical or chemical means and is done so in the process called smelting and refining. Additional power also may be used in the form of cold-working or heating and casting the pure metal into working shape. Corrosion, which can be described merely as rust, is the tendency for metals to revert to their fundamental, lower energy state of ore.

Metallic corrosion involves both oxidation or exposure to oxygen in the environment and electrochemical arrangements, meaning the metal forms corrosion cells on its exterior that significantly accelerate the transformation of metal back to the ore environment, and involves both chemical reactions and the flow of electrons. A primary electrochemical process that drives the corrosion of metals is galvanic procedure, where current is produced within by physical and chemical reactions occurring amongst the components of the cell.

Corrosion Science
Corrosion Process
Types of Corrosion
Corrosion Rate
Steel Corrosion
Galvanic Corrosion
Corrosion Protection for Steel
Effects of Corrosion

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