Abstract
An alloy is a mixture of metals or a mixture of a metal and another element. Alloys are defined by a metallic bonding character. An alloy may be a solid solution of metal elements (a single phase) or a mixture of metallic phases (two or more solutions). Melting point: Put the alloy, a piece of tin and a piece of lead into a sand tray. All three samples should be the same distance from the middle of the dish. Heat the dish gently in the middle. When two of the metals have melted, stop heating. Enhance the hardness of a metal: An alloy is harder than its components. Pure metals are generally soft. The hardness of a metal can be enhanced by alloying it with another metal or nonmetal. Brass is an alloy made from copper and zinc. Unlike pure metals, most alloys do not have a single melting point, but a melting range during which the material is a mixture of solid and liquid phases slush). An alloy is a mixture of two or more metals. Some familiar examples of alloys include brass, bronze, pewter cast and wrought iron, steel, coin metals, and solder (pronounced SOD-der; a substance used to join other metallic surfaces together). Copper alloys have exceptional electrical and thermal performance, good corrosion resistance, high ductility and relatively low cost. Copper alloy is used in airtight seals and copper tin alloys are primarily used for sleeve bearings due to its strength and ductile properties. An alloy is a mixture of two elements, one of which is a metal. Alloys often have properties that are different to the metals they contain. This makes them more useful than the pure metals alone. For example, alloys are often harder than the metal they contain. Keywords: brass, gold, mixture of alloy, strength and ductile properties, zinc
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