Application of positron annihilation spectroscopy to study recovery and recrystallization of commercial pure Al and Al-1 wt% Mn alloys

  • M. S. Abd El Keriem
  • M. Mohsen
  • M. H. Khalil
  • M. Abd El Wahab
  • A. S. Tana
Article

Abstract

Isochronal annealing of cold worked commercial pure aluminum (99.5%) and Al-1wt% Mn alloys was demonstrated between room temperature and 823 K. The stages of recovery and recrystallization were studied using microhardness and positron annihilation lifetime measurements. Apositive correlation was established between the variation of the intensity of long lived component and Vickers microhardness with annealing temperature during the two stages of recovery, which were identified in both aluminum and Al(Mn). The retardation of the recovery stages and recrystallization in Al(Mn) alloys is interpreted in terms of precipitation of aluminum-manganese particles as well as manganese-vacancy interaction.

Keywords

aluminum alloys positron annihilation recovery recrystallization 

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Copyright information

© ASM International 1998

Authors and Affiliations

  • M. S. Abd El Keriem
    • 1
  • M. Mohsen
    • 1
  • M. H. Khalil
    • 1
  • M. Abd El Wahab
    • 2
  • A. S. Tana
    • 3
  1. 1.Physics Dept, Faculty of ScienceAin Shams UniversityCairoEgypt
  2. 2.Physics Dept., Faculty of GirlsAin Shams UniversityCairoEgypt
  3. 3.Metallurgy Dept.Atomic Energy AuthorityCairoEgypt

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