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The sequence of precipitation in the Al-Mg-Si-Cu alloy AA6111

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Abstract

The preciptation behavior of the aluminum alloy AA6111 in the advanced stages of aging has been studied using differential scanning calorimetry (DSC), transmission electron microscopy (TEM), and high-resolution TEM (HRTEM). The results have demonstrated the formation of various precipitate types and morphologies of quaternaryQ phase andβ (Mg2Si) families at the peak-aged condition and during overaging at different temperatures. The work has clarified the sequence ofQ phase formation and showed evidence for a new morphology of this phase. The sequence of precipitation in AA6111 is elaborated in light of the new findings.

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Author notes

  1. David J. Lloyd (Principal Scientist)

    Present address: Novelis Global Technology Centre, K7L 5L9, Kingston, ON, Canada

Authors and Affiliations

  1. the Department of Materials Science and Engineering, McMaster University, L8S 4L7, Hamilton, ON, Canada

    Xiang Wang (Research Associate)

  2. the Department of Mechanical Engineering, University of Waterloo, N2L 3G1, Waterloo, ON, Canada

    Shahrzad Esmaeili (Assistant Professor)

Authors
  1. Xiang Wang
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  2. Shahrzad Esmaeili
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  3. David J. Lloyd
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Wang, X., Esmaeili, S. & Lloyd, D.J. The sequence of precipitation in the Al-Mg-Si-Cu alloy AA6111. Metall Mater Trans A 37, 2691–2699 (2006). https://doi.org/10.1007/BF02586103

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  • DOI: https://doi.org/10.1007/BF02586103

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