Alloys are often used instead of pure metals. aWhy is an alloy of aluminium used to build aeroplanes?

Discuss the advantage of composites compared to aluminium alloys in aerospaceapplications.

hich of these is not a function of alloy steels?*

Which type of substance is an alloy?Pure substanceMixtureElementCompound

Like nitinol, steel is an alloy. Steel is mainly a mixture of iron and other elements, and is commonly used in frames for large buildings.​Which statements best explain why steel alloys are more often used than iron metal in large building frames?​Select the two correct answers.AIron can be easily shaped and bent.BAdding other elements to iron increases its strength.CThe physical properties of steel and iron are nearly identical.DSteel contains more than one element.EThe properties of steel can be changed.

Aluminium is a metal. An aluminium alloy is an alloy where tin is the main component. An example of this is duralumin.Duralumin is harder than aluminium.Explain why duralumin is harder than aluminium.Duralumin contains atoms of different sizes and shapes. These distort the regular arrangement of the aluminium atoms. As a result, the layers are unable to slide over each other.Duralumin contains atoms of the same sizes and shapes. These distort the irregular arrangement of the aluminium atoms. As a result, the layers are able to slide over each other.Duralumin contains molecules of different sizes and shapes. These distort the regular arrangement of the aluminium atoms. As a result, the layers are able to slide over each other.Duralumin contains compounds of the same sizes and shapes. These distort the irregular arrangement of the aluminium atoms. As a result, the layers are unable to slide over each other.