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Modeling of thermomechanical processing of heat-treatable aluminum alloys

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Abstract

This paper describes formulation of a model for calculating recrystallized grain size for heat-treatable aluminum alloys subjected to thermomechanical processing for grain size control. When combined with Zerer's equation for the limiting grain size during grain growth in particle-containing materials, the model can be used to calculate the stable grain size after thermomechanical processing. A set of adjunct models and experimental observations have been used to relate alloy composition and processing parameters to the intermediate variables which are inputs to the model for recrystallized grain size. Model results are compared with experimental data from various sources. Modeling results exhibit all of the trends observed in the experimentally-determined grain sizes for AA7075, for AA6063, and for modified AA7475 alloys containing different dispersoid-forming additions.

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Authors and Affiliations

  1. Department of Materials Science, Thornton Hall, University of Virginia, 22901, Charlottesville, VA

    John A. Wert (Professor)

  2. General Dynamics Corporation, Mail Zone 2161, Box 748, 76101, Fort Worth, TX

    L. K. Austin

Authors
  1. John A. Wert
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  2. L. K. Austin
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Wert, J.A., Austin, L.K. Modeling of thermomechanical processing of heat-treatable aluminum alloys. Metall Trans A 19, 617–625 (1988). https://doi.org/10.1007/BF02649275

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