General Knowledge - Basic General Knowledge - Discussion

When iron material is placed in a environment that contain moisture then upper layer iron react with moisture and utensil got corrosion.

Corrosion is a destruction of metals or alloys from the surrounding environment through chemical or electrochemical changes.

The term is derived via French from the name of Italian scientist Luigi Galvani. Originally, galvanization was the administration of electric shocks, in the 19th century also termed Faradism.

This sense is the origin of the meaning of the metaphorical use of the verb galvanize, as in galvanize into action, or to stimulate a complacent person or group to take action. The term galvanization has largely come to be associated with zinc coatings, to the exclusion of other metals.

Galvanic paint, a precursor to hot-dip galvanization, was patented by Stanislas Sorel, of Paris, France in December, 1837. The earliest known example of galvanizing of iron is found on 17th century Indian armor in the Royal Armouries Museum collection.

It's a Processing to get Zinc-alloy.

There are two process by which the galvanizing process can be done, first type is to pass the iron metal from the molten zinc and the other process is via electroplating. Generally we follow the molten metal zinc process for the galvanizing.

But why only the galvanisation is carried out only via zinc coating not by any other metal. We cannot preserve food in a zinc coated pots because zinc can react with the food material which cause harmful to the human health.

Zinc is more reactive to oxygen in environment. So that galvanizing process is used to protect the material from corrosion.

How reactivity on metals help in electroplating and galvanising process?

Galvanising is a process of zinc coating on other metals in order to prevent corrosion.

A coating of zinc is given to metals to prevent it from getting rusted. And this process of coating zinc on to other metals is called galvanisation.

Galvanizing is a process of provinding a layer of zinc to steel to prevent corrosion and increase the life of steel. Galvanizing process also provides the good appearance to steel.