Recrystallization behavior of a supersaturated Al-Mn alloy

W. C. Liu, B. Radhakrishnan

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

Abstract

The effect of concurrent precipitation on recrystallization behavior during the isothermal annealing of a supersaturated and deformed Al-Mn alloy was investigated. It is found that concurrent precipitation strongly affects the recrystallization behavior of this alloy. At low temperatures, concurrent precipitation retards recrystallization and results in large flat grains. The size of recrystallized grains decreases significantly with increasing temperature. The kinetics of recrystallization was determined by measurements of hardness. The JMAK exponent decreases from 3.0 to 0.8 as the annealing temperature increases from 371 °C to 427 °C. The activation energy for recrystallization of the alloy is about 456 kJ/mol. Concurrent precipitation enhances the activation energy for recrystallization of aluminum alloys.

Original languageEnglish
Pages (from-to)1829-1832
Number of pages4
JournalMaterials Letters
Volume64
Issue number16
DOIs
StatePublished - Aug 31 2010

Funding

This work was supported by the National Natural Science Foundation of China (Grant No. 50874097).

Keywords

  • Concurrent precipitation
  • Deformation
  • Metals and alloys
  • Microstructure
  • Recrystallization

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