Transcription of Aluminum and Aluminum Alloys - NIST
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Aluminum and Aluminum Alloys - NIST
Aluminum andAluminum AlloysIntroduction and OverviewGeneral unique combinations of properties provided by Aluminum and its Alloys make Aluminum one of the most ver-satile, economical, and attractive metallic materials for a broad range ofuses from soft, highly ductile wrapping foil to the most demanding engi-neering applications. Aluminum Alloys are second only to steels in use asstructural has a density of only g/cm3, approximately one-third asmuch as steel ( g/cm3). One cubic foot of steel weighs about 490 lb;a cubic foot of Aluminum , only about 170 lb. Such light weight, coupledwith the high strength of some Aluminum Alloys (exceeding that of struc-tural steel), permits design and construction of strong, lightweight structuresthat are particularly advantageous for anything that moves space vehi-cles and aircraft as well as all types of land- and water-borne resists the kind of progressive oxidization that causes steel torust away.
property development. Many alloys respond to thermal treatment based on phase solubilities. These treatments include solution heat treatment, quenching, and precipitation, or age, hardening. For either casting or wrought alloys, such alloys are described as heat treatable. A large number of other wrought compositions rely instead on work ...
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