Question

Is rusted metal weaker?

Answer 1

Hint:Rusting is a reaction of oxidation. The iron reacts to hydrated iron(III) oxide, which we see as rust, with water and oxygen to form. When they come into contact with water and oxygen, iron and steel rust-both are needed for rusting to happen.

Complete step-by-step answer:The process of rusting of iron is also termed as corrosion.
Rusting of iron refers to the accumulation of rust on the surface of iron artefacts or structures, which is a combination of iron oxides. This rust is produced in an atmosphere containing water from a redox reaction between oxygen and iron (such as air containing high levels of moisture). Iron rusting is characterised by the development of a coating of a red, flaky material that crumbles easily into a powder.
This effect is a great example of metal corrosion, where metal surfaces are degraded into oxides which are more chemically stable. The word 'rusting' is, however, commonly used to refer to the corrosion of iron or iron-alloy artefacts.
In the presence of moisture, exposure of iron (or an alloy of iron) to oxygen contributes to the formation of rust. This reaction is not immediate, it normally proceeds over a significantly broad time period. The atoms of oxygen bond with iron atoms, contributing to the formation of iron oxides. That weakens the bonds in the object/structure between the iron atoms.
So, we can say that, yes rusting makes metal weaker.

Note:Some Ways of Stopping Rust are:
1.Using an alloy. To decrease the effects of rust, many outdoor structures, such as this bridge, are constructed from COR-TEN steel.
2. Apply Oil.
3.Put a dry coating .
4.Metal painting.
5.Only galvanise.
6. Use powder coating.