Corrosions classified according to extent of body surface involved Save

Corrosions classified according to extent of body surface involved

Corrosion is a common problem that affects many industries, including construction, marine, and automotive. Corrosion can be classified according to the extent of the body surface involved. Understanding the different types of corrosion can help you prevent and treat this problem effectively.

1. Localized corrosion: This type of corrosion occurs at specific points on the surface due to a lack of oxygen or an increase in acidity. Examples include pitting and crevice corrosion.
2. Uniform corrosion: This type of corrosion occurs evenly across the surface and is caused by exposure to corrosive substances or environments, such as saltwater or acidic gases.
3. Galvanic corrosion: This type of corrosion occurs when two different metals are in contact with each other and an electrolyte is present. The metal that is less noble will corrode faster, and the metal that is more noble will be protected.
4. Intergranular corrosion: This type of corrosion occurs along the grain boundaries of metals due to impurities or changes in the metal's microstructure.
5. Stress corrosion cracking: This type of corrosion occurs due to a combination of stress and exposure to a corrosive environment. It can lead to sudden failure of the material.

Preventing corrosion is essential to prolong the lifespan of materials. It can be achieved through the use of protective coatings, such as paints, or by selecting materials that are resistant to corrosion. Regular maintenance and inspection can also help detect and treat corrosion before it becomes a more significant problem.

In conclusion, understanding the different types of corrosion and their causes can help you prevent and treat this problem effectively. By taking the necessary precautions, you can ensure the longevity and safety of your structures and equipment.