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Diffusional decomposition of supersaturated solid solutions at grain boundaries

Dedicated to Professor Dr. Hartmut Worch on the occasion of his 65th birthday
  • Vitaly Slezov , Yuri Boyko und Jörg Weissmüller
Veröffentlicht/Copyright: 23. Mai 2013
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 98 Heft 7

Abstract

A kinetic theory of nucleation and growth of single atom phase precipitates in a supersaturated solid solution at grain boundaries is developed. In the present theory, particular attention is devoted to the analysis of two stages of the overall transformation process: (1) – a stage of quasi-steady-state nucleation and (2) – a transient stage of coarsening. As a result of this analysis, the quasi-steady-state nucleation rate, the number of new phase particles formed via nucleation and diffusional growth, and the time-evolution of the size distribution of the precipitates are established. Moreover, estimates are given for the duration of the different stages of the decomposition process.

Keywords: Kinetics; Supersaturated solid solutions; Grain boundary
* Correspondence address, Prof. Dr. Yuri Boyko, V. Karazin Kharkov National University, Department of Physics, Svobody Square 4, 61077 Kharkov, Ukraine, Tel.: +380 57 340 1888, E-mail:

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Received: 2007-1-29
Accepted: 2007-4-21
Published Online: 2013-05-23
Published in Print: 2007-07-01

© 2007, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.101505
Schlagwörter für diesen Artikel
Kinetics; Supersaturated solid solutions; Grain boundary

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Editorial
  4. Editorial
  5. Basic
  6. Diffusional decomposition of supersaturated solid solutions at grain boundaries
  7. Characterization of oriented protein-ceramic and protein-polymer-composites for cartilage tissue engineering using synchrotron μ-CT
  8. Effect of ageing on optical and thermal properties of YBa2Cu3O7–δ
  9. Calorimetric study and thermodynamic assessment of the SrO–Ga2O3 system
  10. Re-determination of transition temperatures in the Fe–Al system by differential thermal analysis
  11. Applied
  12. Novel corrosion protective coatings for aluminium alloys and steels based on oxidic nanoparticles
  13. Novel biomimetically based ice-nucleating coatings
  14. Biomimetically inspired hybrid materials based on silicified collagen
  15. Magnesium sponges as a bioabsorbable material – attributes and challenges
  16. Morphology of bony tissues and implants uncovered by high-resolution tomographic imaging
  17. Review
  18. The effects of metal implants on inflammatory and healing processes
  19. Formation of nano hydroxyapatite – a straightforward way to bioactivate bone implant surfaces
  20. Drug-eluting stent technologies for vascular regeneration
  21. Fiber structures for the regenerative medicine
  22. Stimuli-responsive polymer layers for advanced cell culture technologies
  23. Notifications
  24. Robert W. Cahn: 1924–2007
  25. DGM News
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