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Dislocation structure and crystallite size distribution in plastically deformed Ti determined by X-ray peak profile analysis

  • J. Gubicza , I. C. Dragomir , G. Ribárik , S. C. Baik , Y. T. Zhu , R. Z. Valiev and T. Ungár EMAIL logo
Published/Copyright: February 5, 2022
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 94 Issue 11

Abstract

Ultrafine-grained titanium produced by equal channel angular pressing and subsequent cold rolling is studied by X-ray diffraction. It is found that a texture exists in which the hexagonal basal planes are parallel to the longitudinal axis of the billet. The crystallite size distribution and the dislocation structure are determined by X-ray diffraction peak profile analysis. The median and the variance of the crystallite size distribution are obtained as m = 39 nm and σ = 0.14, respectively. The dislocation model of anisotropic broadening of peak profiles enables to determine the active slip systems. It was found that all three possible hexagonal Burgers vectors of dislocations exist, with the composition of 66% <a> type, 33% <c> type and 1% <c + a> type.

Keywords: Crystallite size distribution; Dislocation structure; Ti; Severe plastic deformation; X-ray peak profile analysis
Prof. Tamas Ungar Department of General Physics Eotvos University Budapest, P. O. Box 32, H-1518, Hungary Tel.: +36 1 372 2801 Fax: +36 1 372 2811

  1. Thanks are due to Dr R. J. Hellmig for his kind assistance in performing the texture measurements. This work was supported by the Hungarian Scientific Research Fund, OTKA, Grant Nos. T031786, T034666 and T029701 as well as the NIS-IPP program in the US Department of Energy. J.G. is grateful for the financial support of Magyary Zoltán Postdoctoral Programme of Foundation for Hungarian Higher Education and Research (AMFK). Y.T.Z. and R.Z.V. acknowledge the support of US DOE IPP program.

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Received: 2003-03-03
Published Online: 2022-02-05

© 2003 Carl Hanser Verlag, München

Articles in the same Issue

  1. Frontmatter
  2. Articles/Aufsätze
  3. Grain boundary diffusion and segregation of Ge in Cu: Radiotracer measurements in different kinetic regimes
  4. Thermal diffusivities of uniaxially cold-pressed Fe2Mo powders
  5. Dislocation structure and crystallite size distribution in plastically deformed Ti determined by X-ray peak profile analysis
  6. Modeling of texture evolution in copper under equal channel angular pressing
  7. Method for in situ texture investigation of recrystallization of Cu and Ti by high-energy synchrotron X-ray diffraction
  8. Contribution of dislocation substructures developed during cold rolling to the formation of rolling textures in Al–Mg alloys
  9. Controlled change in the plastic working conditions of metals in the plane state of strain
  10. Finite element analysis of the thermo-mechanical fatigue of DD8 single crystal nickel-based superalloy
  11. Factors influencing the extent of hydrogen-enhanced brittle cracking in a Cu-strengthened HSLA steel during monotonic loading
  12. Textures and precipitates in Ti-stabilized interstitial-free steel
  13. Coarsening kinetics of Cu particles in an Fe-1.5% Cu alloy
  14. Kinetics of the discontinuous precipitation of a liquid phase in Cu–In alloys
  15. Influence of homogenization on the processing map for hot working of as-cast Mg–2Zn–1Mn alloy
  16. Some characteristics of electrospark deposition
  17. Aktuelle Arbeiten in der Konstitution
  18. Notifications/Mitteilungen
  19. Personal/ Personelles
  20. DGM Events
https://doi.org/10.1515/ijmr-2003-0216
Keywords for this article
Crystallite size distribution; Dislocation structure; Ti; Severe plastic deformation; X-ray peak profile analysis

Articles in the same Issue

  1. Frontmatter
  2. Articles/Aufsätze
  3. Grain boundary diffusion and segregation of Ge in Cu: Radiotracer measurements in different kinetic regimes
  4. Thermal diffusivities of uniaxially cold-pressed Fe2Mo powders
  5. Dislocation structure and crystallite size distribution in plastically deformed Ti determined by X-ray peak profile analysis
  6. Modeling of texture evolution in copper under equal channel angular pressing
  7. Method for in situ texture investigation of recrystallization of Cu and Ti by high-energy synchrotron X-ray diffraction
  8. Contribution of dislocation substructures developed during cold rolling to the formation of rolling textures in Al–Mg alloys
  9. Controlled change in the plastic working conditions of metals in the plane state of strain
  10. Finite element analysis of the thermo-mechanical fatigue of DD8 single crystal nickel-based superalloy
  11. Factors influencing the extent of hydrogen-enhanced brittle cracking in a Cu-strengthened HSLA steel during monotonic loading
  12. Textures and precipitates in Ti-stabilized interstitial-free steel
  13. Coarsening kinetics of Cu particles in an Fe-1.5% Cu alloy
  14. Kinetics of the discontinuous precipitation of a liquid phase in Cu–In alloys
  15. Influence of homogenization on the processing map for hot working of as-cast Mg–2Zn–1Mn alloy
  16. Some characteristics of electrospark deposition
  17. Aktuelle Arbeiten in der Konstitution
  18. Notifications/Mitteilungen
  19. Personal/ Personelles
  20. DGM Events
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