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Number of results
2006 | 110 | 5 | 691-699
Article title

Positron Annihilation in Metals Defected by Action of the Tensile Force

Content
Title variants
Languages of publication
EN
Abstracts
EN
Results of experimental investigations of uniaxially elongated mono- and polycrystalline samples of several metals (Fe, Ta, Pd, Ag, and Au), performed using the positron annihilation methods, are reviewed. The dependences of the S-parameters and positron lifetimes on the relative elongation of the samples were presented. The data obtained for polycrystalline samples indicate that in the proportionality and limited proportionality regions the changes in the physical properties are governed mainly by generation of vacancies and by kinetics of formation and transformations of vacancy clusters occurring first of all on the grain boundaries of monocrystallites. In the region of plastic deformations the dominant defects are dislocations and vacancies and their aggregates generated due to the formation and movement of the dislocations of the primary and secondary slip. In the case of monocrystalline samples it was found that the dynamics of the dislocations and vacancy generation during the sliding of some crystallographic planes depends on the crystallographic direction.
Keywords
EN
Year
Volume
110
Issue
5
Pages
691-699
Physical description
Dates
published
2006-11
received
2006-06-05
References
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  • 2. W. Gambin, Engng. Trans., 39, 303, 1991
  • 3. K. Przybylowicz, Structural Aspects of Metal Deforming, Warsaw University of Technology, Warsaw 2002 (in Polish)
  • 4. W. Gambin, K. Kowalczyk, Plasticity of Metals, Warsaw University of Technology, Warsaw 2003 (in Polish)
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  • 6. W. Rudzińska, J. Pajak, M. Szuszkiewicz, G. Bujnarowski, A.A. Kluza, Phys. Scr., 71, 111, 2005
  • 7. W. Rudzińska, J. Pajak, M. Szuszkiewicz, G. Bujnarowski, A.A. Kluza, Acta Phys. Pol. A, 107, 857, 2005
  • 8. J. Pajak, W. Rudzińska, M. Szuszkiewicz, M. Garlowska, Acta Phys. Pol., 107, 848, 2005
  • 9. J. Pajak, W. Rudzińska, Cz. Szymański, S. Gasior, K. Malisz, in: Proc. 34th Polish Seminar on Positron Annihilation, Ed. K. Jerie, University of Opole, University of Wroclaw, Opole 2002, p. 55
  • 10. W. Rudzińska, M. Szuszkiwicz, A.A. Kluza, G. Bujnarowski, J. Pajak, Chemia i Inżnynieria Środowiska, 10, 157, 2005
  • 11. J. Pajak, W. Rudzińska, R. Pietrzak, Cz. Szymański, W. Smiatek, Phys. Scr., 67, 186, 2003
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv110n517kz
Identifiers
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