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On abnormal grain growth in nanocrystalline materials induced by small particles

  • Vladimir Y. Novikov
Veröffentlicht/Copyright: 11. Juni 2013
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 102 Heft 4

Abstract

A duality in the behaviour of small particles, i. e. their ability to migrate along with some grain boundaries and, simultaneously, inability to move along with the others, has been shown to affect the character of the grain growth process. It is found by numerical simulations that a decrease in the particle mobility favours the evolution of abnormal grain growth and that the particle volume fraction, at low particle mobility, also affects its development. It has been supposed that these results explain the evolution of abnormal grain growth in compacted nanocrystalline materials where small voids could play the part of particles.

Keywords: Grain growth; Disperse particles; Grain boundaries; Nanocrystalline materials
* Correspondence address, Prof. Dr. Vladimir Novikov, (Moscow Institute of Steel and Alloys), Treptower Str. 74d, 22147 Hamburg, Germany. Tel.: +49 40 647 2845, E-mail:

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Received: 2010-6-27
Accepted: 2011-2-3
Published Online: 2013-06-11
Published in Print: 2011-04-01

© 2011, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.110495
Schlagwörter für diesen Artikel
Grain growth; Disperse particles; Grain boundaries; Nanocrystalline materials

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. On the evolution of microstructure in oxygen-free high conductivity copper during thermo-mechanical processing using rotary swaging
  5. Phase-field simulation of diffusion couples in the Ni–Al system
  6. Finnis–Sinclair potentials for fcc Au–Pd and Ag–Pt alloys
  7. Hollow pyramidal lattice truss structures
  8. Synthesis of single-phase polycrystalline Ca2Si powder and sintered compacts
  9. On the micromechanics of die compaction of composite powder materials
  10. Structural, thermal, electrical and mechanical properties of nanosilica-composite polymer electrolytes
  11. The effects of tool rotation speed and traverse speed on friction stir welding of AISI 304 austenitic stainless steel
  12. Estimation of Fe2B growth on low-carbon steel based on two diffusion models
  13. Glass-forming ability and thermal stability of gas-atomized Zr50Cu40Al10 metallic glass powders
  14. Mechanochemical synthesis of nanocrystalline lead selenide: industrial approach
  15. On abnormal grain growth in nanocrystalline materials induced by small particles
  16. High-temperature deformation behaviour of Ti3Al-11Nb intermetallic
  17. Optimization of ZnO2 nanoparticle content in binary blended concrete to enhance high strength concrete
  18. New structural and mechanical features of hexagonal materials after room temperature extrusion using the KoBo method
  19. People
  20. Yuri Estrin turns 65
  21. DGM News
  22. DGM News
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