What are the factors that affect the rate of corrosion?

Corrosion is defined as the natural process that causes the conversion of pure metals to undesirable substances when they react with substances like water or air. This reaction creates damage and disintegration of the metal starting from the portion of the metal exposed to the environment and spreading to the entire bulk of the metal.

Factors that affect the rate of corrosion

  • Higher the reactivity of the metal, the higher the probability of the metal getting corroded
  • The presence of electrolytes in water increases the rate of corrosion
  • A rise in temperature increases the rate of corrosion
  • Exposure of the metals to air containing gases like CO2, SO2, SO3 etc
  • Exposure of metals to moisture especially salt water (which increases the rate of corrosion)

There are many advantages and disadvantages of corrosion over the metal surface. It better to keep the metals safe from corrosion.

 

 

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