A STUDY OF RECOVERY STAGES IN SOME PLASTICALLY DEFORMED ALUMINUM ALLOYS BY POSITRON LIFETIME SPECTROSCOPY

M. A. Abdel-Rahman, M. S. Abdallah and Emad A. Badawi ()
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M. A. Abdel-Rahman: Faculty of Science, Physics Department, El-Minia University, Egypt
M. S. Abdallah: Faculty of Science, Physics Department, El-Minia University, Egypt
Emad A. Badawi: Faculty of Science, Physics Department, El-Minia University, Egypt

Surface Review and Letters (SRL), 2005, vol. 12, issue 02, 203-207

Abstract: Positron annihilation was performed to study the isochronal annealing of wrought (2024, 7075) and casting(AlSi11.35Mg0.23,AlSi10.9Mg0.17Sr0.06)aluminum alloys in the temperature range from room temperature to 773 K after they had been deformed at room temperature with 25% deformation. Two annealing stages of microstructures were distinguished which were attributed to recovery in 2024, andAlSi11.35Mg0.23,AlSi10.9Mg0.17Sr0.06due to point and dislocations respectively, and only one due to dislocations in 7075.

Keywords: Recovery stages; point defect; dislocations; positron annihilation lifetime (search for similar items in EconPapers)
Date: 2005
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DOI: 10.1142/S0218625X05006937

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