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Vacancies in plastically deformed copper

  • M. Zehetbauer EMAIL logo , E. Schafler and T. Ungár
Published/Copyright: February 16, 2022
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 96 Issue 9

Abstract

In discussing hardening characteristics in terms of crystalline lattice defects, in most cases the properties and kinetics of dislocations and their arrangement have been considered. However, during plastic deformation also vacancies and/or vacancy-type defects are produced in very high densities which are typically close to those of vacancies in thermal equilibrium at the melting point. This paper presents measurements of deformation-induced vacancies in deformed copper which have been achieved by combined evaluation of resistometry, calorimetry and X-ray diffraction. The density of vacancies during and after severe plastic deformation (SPD) deformation is found to be markedly higher than in cases of conventional deformation and/or coarse-grained material, which is attributed to the particular conditions of SPD, i. e., the enhanced hydrostatic pressure as well as the changes in the deformation path. The use of synchrotron radiation allows to apply the XPA method for in-situ deformation monitoring of intrinsic structural parameters. This also includes deformation-induced vacancies, evaluated by the diffuse background of Bragg peak profiles.

Keywords: Vacancies; Vacancy agglomerates; Plastic deformation
Institut für Materialphysik, Universität Wien Ao. Univ. Prof. Dr. Michael Zehetbauer A-1090 Wien, Boltzmanngasse 5, Austria Tel.: +43 1 4277 51443 Fax: +43 1 4277 51440

Dedicated to Professor Dr. Dr. h. c. Hein Peter Stüwe on the occasion of his 75th birthday

  1. The Science Foundation of Austria (FWF) and the Hungarian National Science Foundation are acknowledged for financial support under projects P17095-N02 and OTKAT46990 & OTKAT43247.

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Received: 2005-04-25
Accepted: 2005-06-14
Published Online: 2022-02-16

© 2005 Carl Hanser Verlag, München

Articles in the same Issue

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  2. Kösterpreis
  3. Award/Preisverleihung
  4. Editorial
  5. Editorial
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  7. Effect of interface strength on electromigration-induced inlaid copper interconnect degradation: Experiment and simulation
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  19. Modeling of axial strain in free-end torsion of textured copper
  20. Vacancies in plastically deformed copper
  21. An analytic and generalized formulation of the sin2 ψ-method
  22. Nanoindentation applied on a tungsten–copper composite before and after high-pressure torsion
  23. Articles Applied
  24. The local deformation behaviour of MMCs – an experimental study
  25. X-ray elastic constants determined by the combination of sin2 ψ and substrate-curvature methods
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https://doi.org/10.1515/ijmr-2005-0180
Keywords for this article
Vacancies; Vacancy agglomerates; Plastic deformation

Articles in the same Issue

  1. Frontmatter
  2. Kösterpreis
  3. Award/Preisverleihung
  4. Editorial
  5. Editorial
  6. Articles Basic
  7. Effect of interface strength on electromigration-induced inlaid copper interconnect degradation: Experiment and simulation
  8. Application of factor analysis in electron spectrometry (AES, XPS) for materials science
  9. Focussing and defocussing effects at radio frequency glow discharge optical emission spectroscopy analyses of thin films with partly nonconductive components
  10. Semi-flexible star-shaped molecules: conformational analysis of nano-segregated mesogens forming columnar liquid-crystal phases
  11. Articles Applied
  12. Structure, properties and applications of diamond-like carbon coatings prepared by reactive magnetron sputtering
  13. Local texture and back-end defect in hot extruded AZ91 magnesium alloy
  14. A comparison of thermal stability in nanocrystalline Ni- and Co-based materials
  15. Microstructure and phase formation of Heusler thin film compounds
  16. Correlation between the average composition of coherent superlattice and the GMR properties of electrodeposited Co–Cu/Cu multilayers
  17. Articles Basic
  18. Towards a description of complex pearlite structures
  19. Modeling of axial strain in free-end torsion of textured copper
  20. Vacancies in plastically deformed copper
  21. An analytic and generalized formulation of the sin2 ψ-method
  22. Nanoindentation applied on a tungsten–copper composite before and after high-pressure torsion
  23. Articles Applied
  24. The local deformation behaviour of MMCs – an experimental study
  25. X-ray elastic constants determined by the combination of sin2 ψ and substrate-curvature methods
  26. Combining complementary techniques to study precipitates in steels
  27. Precipitation hardening in Mg–Zn–Sn alloys with minor additions of Ca and Si
  28. Notifications/Mitteilungen
  29. Personal
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