Defect Investigation of Plastically Deformed Al 5454 Wrought Alloy Using PADBS and Electrical Measurements
p.1
p.1
Activation Enthalpy of Dislocation Migration in Aircraft (Aerospace) (2024) Alloy by Positron Spectroscopy
p.11
p.11
Effect of Irradiation Doses on AlCu6.5 Alloy Using Positron Annihilation Doppler Broadening Technique
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p.15
Dependence of Mono-Vacancy Formation Energy on the Parameter of Ashcroft's Potential
p.25
p.25
X-Ray Characterization of Ag Impurities in Na1-xAgxCl
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p.33
Self-Organization Behavior of Sub-Micron CdO Grains Grown during Vapour-Solid Transition
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p.45
Studies on the Local Structure and the Spin Hamiltonian Parameters for Co2+ in CaTiO3
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Activation Enthalpy of Dislocation Migration in Aircraft (Aerospace) (2024) Alloy by Positron Spectroscopy
Abstract:
Positron annihilation lifetime is one of the most important nuclear techniques, used to study the isochronal and isothermal annealing in one of the most important engineering aluminum alloys which is 2024 alloy. Samples of 25 % deformation have been used for these studies. Two recovery stages during the isochronal annealing [1] were observed which were ascribed to the recovery of point defects and dislocations introduced by the deformation. The isothermal annealing measurements were performed at 583, 603, 623 and 643 K from which the activation energy obtained was 1.24 ± 0.08 eV.
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Info:
Periodical:
Defect and Diffusion Forum (Volume 278)
Pages:
11-14
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Online since:
July 2008
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