Abstract
Approximately 70% of aluminum produced globally is cast and fabricated into wrought alloy products by processes that are briefly described. These alloys are divided into two groups depending on whether or not they respond to heat treatment. The mechanical properties of the non-heat-treatable alloys are controlled by work hardening and annealing, whereas the heat-treatable groups are strengthened by age hardening. Temper designations are listed and described. Compositions and tensile properties of many of the commercial alloys are summarized in tables and their individual characteristics are discussed in some detail. Joining processes involving arc welding, friction stir welding, laser welding, brazing, diffusion bonding, and soldering are described. Attention is then directed to the commercial applications of the wrought aluminum alloys in the aerospace, automotive, shipping, packaging, and building industries. Reference is also made to lighter weight lithium-containing alloys that are finding structural applications in modern aircraft. Other more specialized topics include powder metallurgy products, aluminum alloy bearings, superplastic alloys, and aluminum-ion storage batteries.
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