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Efficiency of drag mechanisms for inhibition of grain growth in nanocrystalline materials

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Published/Copyright: December 30, 2021
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 95 Issue 4

Abstract

An attempt is made to assess the efficiency of drag effects by different structural elements of a polycrystal on grain growth. The rate of grain area change is chosen as a measure of stability of a grain structure, and the inhibition of grain growth is pairwise evaluated among all drag effects considered. In aluminium, at temperatures of about 200 °C, triple junction drag was found to be most effective. The derived hierarchy of drag efficiency can be used as an effective engineering tool to assess and compare the role of chemistry and crystal defects on the microstructural stability of nanocrystalline and fine-grained materials.

Keywords: Grain microstructure; Grain growth; Thermal stability; Nanocrystals; Drag effects
Prof. Dr. G. Gottstein, Institut für Metallkunde und Metallphysik, RWTH Aachen, D-52056 Aachen, Tel.: +49 241 80 268 60, Fax: +49 241 802 26 08

Funding statement: Support from the Deutsche Forschungsgemeinschaft (DFG Grant 436 RUS 113/714/0 – 1(R)) is gratefully acknowledged. One of the authors (LSS) wishes to thank the Russian Foundation of Fundamental Research for financial support (Grant DFG-RRFI 03 02 04000)

References

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Received: 2004-01-20
Accepted: 2004-02-03
Published Online: 2021-12-30

© 2004 Carl Hanser Verlag, München

Articles in the same Issue

  1. Frontmatter
  2. Editorial
  3. Editorial
  4. Articles BBasic
  5. The distribution of internal interfaces in polycrystals
  6. Analysis of grain boundary network topology using grain boundary wetting
  7. Kinematics of connected grain boundaries in 2D
  8. On the first steps of grain boundary dislocation stress relaxations in copper
  9. Grain boundary mobility – a brief review
  10. In situ TEM observations of moving interfaces during discontinuous precipitation reaction in Al-22 at.% Zn alloy
  11. Stress-induced migration of tilt and twist grain boundaries
  12. Efficiency of drag mechanisms for inhibition of grain growth in nanocrystalline materials
  13. A model for simulating the motion of line defects in twin boundaries in HCP metals
  14. Phase transitions: an alternative for stress accommodation in CMR manganate films
  15. Thermodynamic and kinetic influences on the morphology of moving interfaces during solid state reactions
  16. Interfacial reaction mechanisms and the structure of moving heterophase boundaries during pyrochlore- and spinel-forming solid state reactions
  17. Bifurcation of the Kirkendall plane and patterning in reactive diffusion
  18. Articles AApplied
  19. Wetting and strength in the tin – silver – titanium/sapphire system
  20. Intergranular films in metal-ceramic composites and the promotion of metal particle occlusion
  21. Evolution of intergranular boundaries and phases in SiC and Si3N4 ceramics under high temperature deformation: Case studies by analytical TEM
  22. Atomic structure and dynamics of massive transformation interfaces in TiAl alloy
  23. Notifications/Mitteilungen
  24. Personal/Personelles
  25. Books/Bücher
  26. Conferences/Konferenzen
  27. Events/Veranstaltungen
https://doi.org/10.3139/ijmr-2004-0050
Keywords for this article
Grain microstructure; Grain growth; Thermal stability; Nanocrystals; Drag effects

Articles in the same Issue

  1. Frontmatter
  2. Editorial
  3. Editorial
  4. Articles BBasic
  5. The distribution of internal interfaces in polycrystals
  6. Analysis of grain boundary network topology using grain boundary wetting
  7. Kinematics of connected grain boundaries in 2D
  8. On the first steps of grain boundary dislocation stress relaxations in copper
  9. Grain boundary mobility – a brief review
  10. In situ TEM observations of moving interfaces during discontinuous precipitation reaction in Al-22 at.% Zn alloy
  11. Stress-induced migration of tilt and twist grain boundaries
  12. Efficiency of drag mechanisms for inhibition of grain growth in nanocrystalline materials
  13. A model for simulating the motion of line defects in twin boundaries in HCP metals
  14. Phase transitions: an alternative for stress accommodation in CMR manganate films
  15. Thermodynamic and kinetic influences on the morphology of moving interfaces during solid state reactions
  16. Interfacial reaction mechanisms and the structure of moving heterophase boundaries during pyrochlore- and spinel-forming solid state reactions
  17. Bifurcation of the Kirkendall plane and patterning in reactive diffusion
  18. Articles AApplied
  19. Wetting and strength in the tin – silver – titanium/sapphire system
  20. Intergranular films in metal-ceramic composites and the promotion of metal particle occlusion
  21. Evolution of intergranular boundaries and phases in SiC and Si3N4 ceramics under high temperature deformation: Case studies by analytical TEM
  22. Atomic structure and dynamics of massive transformation interfaces in TiAl alloy
  23. Notifications/Mitteilungen
  24. Personal/Personelles
  25. Books/Bücher
  26. Conferences/Konferenzen
  27. Events/Veranstaltungen
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