Various factors affect the rate of corrosion of aluminium in water. Some of the factors include temperature, alloy constituents, movements of water, pH and electric conductivity.
Aluminium oxide (Al2O3) is a natural oxide layer which forms on the surface of aluminium when it comes into contact with oxygen. This oxide layer acts as a protection layer to prevent further oxidation. However, a process called anodising is used to increase this oxide layer. This process is used to provide a protective coating on aluminium and increases its durability.
Aluminium alloys have good corrosion resistance. However, it is important to keep in mind that aluminium alloys require special welding processes. This is because of its high temperature operation.
Anodising can also improve durability and endurance. This process is used in areas with a harsh climate. Moreover, it is easy to implement and provides a protective coating on aluminium.
Aluminium oxide is also used in the automotive industry. It is also used in various chemical applications. It has a low iron content and is resistant to various types of solvents.
Aluminum oxide has a low density. This is a factor which makes it a lightweight metal. It is also an excellent conductor of heat and electricity.
Aluminium is a light metal that is used for construction of aircraft, ladders, and light vehicles. Aluminum is a very strong metal. It also contains a very thin oxide layer that protects it from corrosion.
Aluminum oxide is produced in the Bayer process. In this process, bauxite is converted into a white crystalline material called aluminium oxide (Al2O3).