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Ostwald ripening in Al–Li alloys: A test of theory

  • Ben A. Pletcher , Ke-Gang Wang and Martin E. Glicksman
Published/Copyright: May 15, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 103 Issue 11

Abstract

Experimental characterization of microstructure evolution in three binary Al–Li alloys provides a quantitative test of diffusion screening theory. Particle size distributions, growth kinetics, and maximum particle sizes are obtained through quantitative, centered dark-field transmission electron microscopy. The dependences on δ′ precipitate volume fraction of the coarsening rate constant and maximum particle size are revealed, both of which have eluded determination for a half century. These experiments show that the diffusion screening theory for late-stage phase coarsening yields accurate predictions of maximum size of particle and relative coarsening constant.

Keywords: Metals & alloys; Precipitation; Ostwald ripening; Statistical mechanics
∗ Correspondence address Ke-Gang Wang, Associate Professor, Department of Mechanical and Aerospace Engineering, Florida Institute of Technology, 150 West University Blvd., Melbourne, FL 32901, USA, Tel.: 1-321-6748799, Fax: 1-321-6748813, E-mail:

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Received: 2011-6-16
Accepted: 2012-3-1
Published Online: 2013-05-15
Published in Print: 2012-11-01

© 2012, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.110777
Keywords for this article
Metals & alloys; Precipitation; Ostwald ripening; Statistical mechanics

Articles in the same Issue

  1. Contents
  2. Contents
  3. Award/Preisverleihung
  4. The Werner-Köster-Preis 2011
  5. Original Contributions
  6. Ostwald ripening in Al–Li alloys: A test of theory
  7. The Mg–C phase equilibria and their thermodynamic basis
  8. Experimental and thermodynamic study of nickel (30 wt.%Cr) – based alloys containing between 2.5 and 5.0 wt.% carbon
  9. Thermodynamic description of the system Cu–Sn–P experimental and numerical investigation
  10. Severe tempering of bainite generated at low transformation temperatures
  11. A comparative study of microstructure, compressive, and fracture properties of Ti3Al-based intermetallics produced via powder metallurgy, and melting and casting processes
  12. Rod-like structure and microhardness during directional solidification of Sn-1wt.%Cu eutectic alloy
  13. Properties of Si3N4/SiC composites produced via spark plasma sintering
  14. Formation of Al67Cu23Fe10 quasicrystals by microwave heating
  15. Magnetoelectric characteristics of cobalt-iron alloy–lead zirconate titanate bilayer planar structures
  16. On the texture and grain growth in hot-deformed and annealed WE54 alloy
  17. Numerical study of equal-channel angular pressing based on the element-free Galerkin method
  18. Dynamic behavior of staggered triangular honeycomb cores under in-plane crushing loadings
  19. Preparation and characterization of polyaniline/Fe3O4–polyacrylonitrile composite nanofibers
  20. Controlled release of ofloxacin from gelatin blended with cloisite 30B
  21. Short Communications
  22. Effect of sol concentration on the microstructures of barium hafnate titanate nanopowders
  23. People
  24. Horst Vehoff 65 years
  25. DGM News
  26. DGM News
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