Most copper alloys are brasses and bronzes.
Iridium is chiefly used in the form of platinum alloys.
These alloys are also capable of withstanding great heat.
In large-grained alloys, the boundaries may be continuous.
Chromium alloys are used to fabricate such products as oil tubing, automobile trim, and cutlery.
Aluminum-lithium alloys are stiffer and less dense than conventional aluminum alloys.
Nonferrous alloys, mainly copper–nickel, bronze, and aluminum alloys, are much used in coinage.
Aluminum and other light metal alloys have come to be favoured for exterior construction because of their weather resistance.
During the period of early jet engines (from about 1940 to 1970), design requirements were met by the development of new alloys alone.
The term fusible metals, or fusible alloys, denotes a group of alloys that have melting points below that of tin (232° C, 449° F).
An important date from more recent history is 1839, when the American metalsmith Isaac Babbitt first used tin-based alloys in bearings for machinery.
Alloys are used in millions of ways each day: Airplanes, automobiles, building metals, and cooking pots are typical objects made of alloys.
Alloys of gold with silver or copper are used to make gold coins and goldware, and alloys with platinum or palladium are also used in jewelry.
Cadmium combines with many heavy metals to yield alloys; the most important are bearing alloys and low-melting alloys used for brazing.
In variety of uses, the alloys of copper surpass all other nonferrous alloys and comprise mixtures of copper with zinc, tin, nickel, aluminum, lead, manganese, and other elements.
Much beryllium is used as a low-percentage component of hard alloys, especially with copper as the main constituent but also with nickel- and iron-based alloys, for products such as springs.
Cobalt is also employed for hard-facing alloys, tool steels, low-expansion alloys (for glass-to-metal seals), and constant-modulus (elastic) alloys (for precision hairsprings).
Aluminum is added in small amounts to certain metals to improve their properties for specific uses, as in aluminum bronzes and most magnesium-base alloys; or, for aluminum-base alloys, moderate amounts of other metals and silicon are added to aluminum.
Small amounts of tellurium increase the ductility of aluminum alloys, the hardness and tensile strength of tin alloys, and the machinability of stainless steel and copper; in lead and in manganese-magnesium alloys, it increases resistance to corrosion.
Bismuth is thus a useful component of type-metal alloys, which make neat, clean castings; and it is an important ingredient of low-melting alloys, called fusible alloys, which have a large variety of applications, especially in fire-detection equipment.
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