![]() They can be further classified as homogeneous (consisting of a single phase), or heterogeneous (consisting of two or more phases) or intermetallic. Alloys are usually classified as substitutional or interstitial alloys, depending on the atomic arrangement that forms the alloy. The alloy constituents are usually measured by mass percentage for practical applications, and in atomic fraction for basic science studies. In other cases, the mixture imparts synergistic properties to the constituent metal elements such as corrosion resistance or mechanical strength.Īlloys are defined by a metallic bonding character. In some cases, an alloy may reduce the overall cost of the material while preserving important properties. ![]() Unlike chemical compounds with metallic bases, an alloy will retain all the properties of a metal in the resulting material, such as electrical conductivity, ductility, opacity, and luster, but may have properties that differ from those of the pure metals, such as increased strength or hardness. From left to right: three alloys ( beryllium copper, Inconel, steel) and three pure metals ( titanium, aluminum, magnesium)Īn alloy is a mixture of chemical elements of which at least one is a metal. ![]()
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