Evolution of microstructure under different homogenization conditions and its effect on recrystallization processes during hot rolling of AA5182 alloy

  • Aleksandar Ćitić 1. University of Belgrade, Faculty of Technology and Metallurgy, Belgrade, Serbia and 2. Military Technical Institute, Belgrade, Serbia
  • Tamara Radetić University of Belgrade, Faculty of Technology and Metallurgy, Belgrade, Serbia
  • Filip Rajković University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia
  • Dejan Prelević University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia
  • Miljana Popović University of Belgrade, Faculty of Technology and metallurgy https://orcid.org/0000-0002-4691-0603
Keywords: AA5182 alloy, Homogenization, (Fe,Mn)-bearing microconstituents, Mn-bearing dispersoids, Recrystallization

Abstract


This study investigates microstructure development of AA5182 Al-Mg alloy under various homogenization conditions and how these conditions affect recrystallization processes and texture development during the laboratory hot-rolling. Homogenization treatments were conducted for 16 h at 490°C and at 550°C for various times. Scanning electron microscopy (SEM) characterization including energy-dispersive X-ray spectroscopy (EDX) revealed the presence of Al3(Fe,Mn) and Alm(Fe,Mn) phases as Fe/Mn-bearing microconstituents in as-cast state. These transformed into Al6(Fe,Mn) and α-Al(Fe,Mn)Si during homogenization treatments. The treatments also led to precipitation of Al6(Mn,Fe) and α-Al(Fe,Mn)Si dispersoid particles. Results of electron backscattered diffraction (EBSD) indicated that a weak deformation texture was present after the hot-rolling. The morphology of grains and degree of restoration were significantly influenced by homogenization conditions. The distribution and density of dispersoids had a strong effect on the mechanisms of recovery and recrystallization.

Author Biography

Miljana Popović, University of Belgrade, Faculty of Technology and metallurgy
Катедра за металуршко инжењерство

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Published
2025/12/31
How to Cite
Ćitić, A., Radetić, T., Rajković, F., Prelević, D., & Popović, M. (2025). Evolution of microstructure under different homogenization conditions and its effect on recrystallization processes during hot rolling of AA5182 alloy. Journal of Mining and Metallurgy, Section B: Metallurgy, 61(3), 369-383. Retrieved from https://aseestant.ceon.rs/index.php/jmm/article/view/60898
Section
Original Scientific Paper