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Sub-grain boundary mobilities during recovery of binary Al–Mn alloys

  • Fabrice Barou , Claire Maurice , Jean-Marie Feppon and Julian Driver
Published/Copyright: June 11, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 100 Issue 4

Abstract

The influence of Mn solute atoms on sub-grain boundary mobilities in Al has been determined by accurate electron backscatter diffraction analysis of the sub-grain sizes and misorientations during recovery annealing. High purity Al-0.1 and 0.3 wt.% Mn alloys were deformed by plane strain compression at room temperature to equivalent strains of 1.8 and annealed in the temperature range 150 – 300 °C. An original method of image analysis on sub-boundaries from electron backscatter diffraction maps was applied to quantify the sub-grain size distributions. The change in average sub-grain size with time at several temperatures was then used to estimate sub-grain boundary mobilities in both Al – Mn alloys. The activation energies for sub-grain mobility were found to be 48 and 52 and kJ mol– 1 for the 0.1 and 0.3 % Mn alloys respectively, with the higher Mn alloy exhibiting lower rates. The sub-boundary mobilities are higher than expected from previous similar work on deformed Al – Si crystals. The orientation dependence of sub-grain growth is also examined.

Keywords: Sub-boundary mobilities; Al – Mn alloys; SEM/EBSD; Activation energies; Recovery
* Correspondence address, Professor Julian Driver Ecole des Mines de Saint Etienne 158 Cours Fauriel, 42023 Saint-Etienne, France Tel.: +33 477 420 196 Fax: +33 477 426 678 E-mail:

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Received: 2008-7-23
Accepted: 2008-12-12
Published Online: 2013-06-11
Published in Print: 2009-04-01

© 2009, Carl Hanser Verlag, München

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. Prof. Dr. Günter Gottstein
  5. Feature
  6. Interface Migration in Metals (IMM):“Vingt Ans Après” (Twenty Years Later)
  7. Basic
  8. On the solute-defect interaction in the framework of a defactant concept
  9. A new model of dynamic recovery for Stage III of pure fcc metals without cross slip
  10. Sequence of distinct microyielding stages of the monocrystalline nickel-base superalloy CMSX-6 at high temperatures
  11. Comparison of texture evolution in fcc metals predicted by various grain cluster homogenization schemes
  12. Recrystallization initiated by low-temperature grain boundary motion coupled to stress
  13. Sub-grain boundary mobilities during recovery of binary Al–Mn alloys
  14. Concentration phase transition associated with grain boundary segregation in systems with restricted solubility
  15. Second-order faceting–roughening of the tilt grain boundary in zinc
  16. A model of grain boundary diffusion in polycrystals with evolving microstructure
  17. Linear measures for polyhedral networks
  18. Testing a curvature driven moving finite element grain growth model with the generalized three dimensional von Neumann relation
  19. Grain-boundary source/sink behavior for point defects: An atomistic simulation study
  20. Applied
  21. Deformation modes and anisotropy in magnesium alloy AZ31
  22. Control of recrystallisation texture and texture-related properties in industrial production of aluminium sheet
  23. The combined effect of static recrystallization and twinning on texture in magnesium alloys AM30 and AZ31
  24. Comparison of damage development depending on the local microstructure in low alloyed Al-TRIP-steels, IF steel and a DP steel
  25. Nanoindentation of Ti50Ni48Fe2 and Ti50Ni40Cu10 shape memory alloys
  26. Early detection of crack initiation sites in TiAl alloys during low-cycle fatigue at high temperatures utilizing digital image correlation
  27. Superplastic failure mode in ultrafine grained magnesium alloy AZ31
  28. High temperature magnetic strengthening in iron-based alloys: Magnetic effects on deformation and fracture, revisited
  29. Notification
  30. DGM News
https://doi.org/10.3139/146.110057
Keywords for this article
Sub-boundary mobilities; Al – Mn alloys; SEM/EBSD; Activation energies; Recovery

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. Prof. Dr. Günter Gottstein
  5. Feature
  6. Interface Migration in Metals (IMM):“Vingt Ans Après” (Twenty Years Later)
  7. Basic
  8. On the solute-defect interaction in the framework of a defactant concept
  9. A new model of dynamic recovery for Stage III of pure fcc metals without cross slip
  10. Sequence of distinct microyielding stages of the monocrystalline nickel-base superalloy CMSX-6 at high temperatures
  11. Comparison of texture evolution in fcc metals predicted by various grain cluster homogenization schemes
  12. Recrystallization initiated by low-temperature grain boundary motion coupled to stress
  13. Sub-grain boundary mobilities during recovery of binary Al–Mn alloys
  14. Concentration phase transition associated with grain boundary segregation in systems with restricted solubility
  15. Second-order faceting–roughening of the tilt grain boundary in zinc
  16. A model of grain boundary diffusion in polycrystals with evolving microstructure
  17. Linear measures for polyhedral networks
  18. Testing a curvature driven moving finite element grain growth model with the generalized three dimensional von Neumann relation
  19. Grain-boundary source/sink behavior for point defects: An atomistic simulation study
  20. Applied
  21. Deformation modes and anisotropy in magnesium alloy AZ31
  22. Control of recrystallisation texture and texture-related properties in industrial production of aluminium sheet
  23. The combined effect of static recrystallization and twinning on texture in magnesium alloys AM30 and AZ31
  24. Comparison of damage development depending on the local microstructure in low alloyed Al-TRIP-steels, IF steel and a DP steel
  25. Nanoindentation of Ti50Ni48Fe2 and Ti50Ni40Cu10 shape memory alloys
  26. Early detection of crack initiation sites in TiAl alloys during low-cycle fatigue at high temperatures utilizing digital image correlation
  27. Superplastic failure mode in ultrafine grained magnesium alloy AZ31
  28. High temperature magnetic strengthening in iron-based alloys: Magnetic effects on deformation and fracture, revisited
  29. Notification
  30. DGM News
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