A model for recovery kinetics of aluminum after large strain

Tianbo Yu, Niels Hansen

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Abstract

A model is suggested to analyze recovery kinetics of heavily deformed aluminum. The model is based on the hardness of isothermal annealed samples before recrystallization takes place, and it can be extrapolated to longer annealing times to factor out the recrystallization component of the hardness for conditions where recovery and recrystallization overlap. The model is applied to the isothermal recovery at temperatures between 140 and 220°C of commercial purity aluminum deformed to true strain 5.5. EBSD measurements have been carried out to detect the onset of discontinuous recrystallization. Furthermore, comparison between the present model and a similar recently developed recovery model is made, and the result is discussed. © (2012) Trans Tech Publications, Switzerland.
Original languageEnglish
JournalMaterials Science Forum
Volume715-716
Pages (from-to)374-379
ISSN0255-5476
DOIs
Publication statusPublished - 2012
Event4th International Conference on Recrystallization and Grain Growth - Sheffield, United Kingdom
Duration: 4 Jul 20109 Jul 2010

Conference

Conference4th International Conference on Recrystallization and Grain Growth
Country/TerritoryUnited Kingdom
CitySheffield
Period04/07/201009/07/2010

Keywords

  • Activation energy
  • Aluminum
  • Grain growth
  • Hardness
  • Isothermal annealing
  • Isotherms
  • Kinetics
  • Recrystallization (metallurgy)
  • Recovery

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