Question

What is an alloy ? How are alloys generally made?
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Answer 1

Answer:

It is made up of two or more chemical elements, of which at least one is a metal. An alloy has properties different from the metals it is made of. Most alloys are made by melting the metals, mixing them while they are liquid to form a solution, then leaving them to cool and turn solid again.

Answer 2

Alloy:

• Alloy is an admixture of metals , or metal combined with one or more other elements. An alloy is a homogenous mixture of two or more metals or a metal and a non-metal.
• For example: Combining the metallic elements

                      Gold and copper produces red gold

                      Gold and  silver becomes white gold

                      Silver combined with copper produces sterling silver.

• The resulting mixture forms a substances with properties that often differ from those of pure metals such as increased strength or hardness.
• It is made up of two or more chemical elements, at which at least one is a metal. An alloy has properties different from the metals it is made of.
• Most alloys are made by melting the metals, mixing them while they are liquid to form a solution, then leaving them to cool and turn solid again.

Properties of alloy:

• Alloy steels have a wide range of special properties such as hardness, toughness, corrosion resistance,  magnetizability and ductility.

• Non-ferrous alloys mainly cooper-nickel, aluminum alloys are much used in coinage.