Microstructural Evolution during Annealing of 5052 Al Alloy Deformed at Cryogenic Temperature

Abstract:

The activation energy for recovery and recrystallization was calculated using DSC data. The annealing below 250°C resulted in the bimodal grain size distribution, while that above 300°C resulted in the uniform distribution of coarse grains. The formation of a bimodal microstructure would be responsible for the good combination of uniform elongation and tensile strength. Additionally, the little variation of hardness for different annealing time at 300°C also indicated that mechanical properties of deformed and annealed 5052 Al alloy were significantly influenced by the volume fraction of recrystallized grains rather than the coarsening of recrystallized grains.

• Periodical: Solid State Phenomena (Volumes 124-126)
• Pages: 1393-1396
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.124-126.1393
• Online since: June 2007
• Authors: Ui Gu Gang, Yong Shin Lee, Kyung Tae Park, Won Jong Nam
• Keywords: Annealing, Cryogenic Temperature, Recovery, Recrystallization, Ultrafine Grained

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