What is corrosion? Explain its advantages …
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Posted by Rajesh Rai 4 years, 3 months ago
- 4 answers
? Pranali.A.P ? 4 years, 3 months ago
Gaurav Seth 4 years, 3 months ago
Corrosion is a natural process that converts a refined metal into a more chemically-stable form such as oxide, hydroxide, or sulfide. It is the gradual destruction of materials (usually a metal) by chemical and/or electrochemical reaction with their environment.
Advantages of corrosion:
- Protection : Surface corrosion forms an oxide layer which further protects the inner metal form corrosion.
- Corrosion prevents corrosion : Some metals like zinc are used as sacrificial anodes to prevent corrosion to other metal.
- Galvanic corrosion : The principle on which primary batteries work.
The main disadvantages of corrosion of metal are:
- Lose of metal from the surface.
- Change in the physical appearance of a metal object.
- Change in chemical properties of metal.
- Lose of the efficiency of metallic machines.
- A decrease in the life span of metallic objects.
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Tvisha Sanghvi 4 years, 3 months ago
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