Question

when a buried pipeline made up of iron metal is protected from corrosion by connecting it to magnesium blocks then it is

Answer 1

when we protect iron from magnisium it is called galvanisatio

Answer 2

Answer:

The process of protecting a buried pipeline made of iron from corrosion by connecting it to magnesium blocks is called cathodic protection.

Explanation:

From the above question,

           The method of defending a buried pipeline made of iron from corrosion by using connecting it to magnesium blocks is referred to as cathodic protection.

In this method,

       The magnesium blocks act as sacrificial anodes that corrode in region of the iron pipeline. This procedure of corrosion on the magnesium blocks creates a cathodic modern that flows closer to the iron pipeline, thereby defending it from corrosion. This method is broadly used in the oil and gasoline enterprise to stop corrosion of buried pipelines and different metallic constructions that are uncovered to harsh environments.

In the case of defending a buried pipeline made of iron, magnesium blocks are used as sacrificial anodes. Magnesium is a extra reactive steel than iron and will corrode greater readily.

Therefore,

        When magnesium blocks are linked to the iron pipeline, they will corrode as an alternative of the pipeline, consequently offering cathodic protection.

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