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ASM Handbook

Heat Treating of Nonferrous Alloys

Edited by
George E. Totten
George E. Totten
Portland State University
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ASM International
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Book Chapter

Annealing of Aluminum and Its Alloys

Jürgen Hirsch
Jürgen Hirsch
Hydro Aluminium Rolled Products GmbH–R&D
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Page range:
137 - 147
Publication history
November 11, 2016


Annealing is an essential treatment in the fabrication of metal parts and semiproducts. This article discusses the processes involved in annealing, namely, recovery, recrystallization, and grain coarsening. It lists the heat treatment conditions of processed aluminum alloys. It provides information on the types of heat treatment, which include preheating, full anneal, stabilization, and stoving. The article describes the steps involved for achieving the age-hardening effect and the strongest hardening effect in aluminum. The steps to increase the strength of aluminum alloys by extremely fine, dispersed second-phase particles are: solution heat treatment, quenching, and age hardening. Finally, the article also discusses the process parameters of annealing, including the effect of strain, effect of temperature, effect of heating rate, and the effect of alloy elements, and the effect of annealing on anisotropy.

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Jürgen Hirsch, 2016. "Annealing of Aluminum and Its Alloys", Heat Treating of Nonferrous Alloys, George E. Totten

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