Recrystallization in a Hot Deformed Al-Mg-Si Alloy: The Effect of Fine Precipitates

Autor: S. De La Chapelle, Paul Duval
Rok vydání: 2002
Předmět:
Zdroj: Textures and Microstructures. 35:55-70
ISSN: 1029-4961
0730-3300
DOI: 10.1080/0730330021000000209
Popis: The recrystallization of an Al-Mg-Si alloy deformed by plane strain compression at 400°C and 1 s-1 has been studied. Fine particles are found to have a significant influence on the development of recrystallization textures. Annealing at 400°C, in the presence of Al-Fe-Si particles located on boundaries, results in a weak recrystallization texture. There is a clear indication that grain nucleation is associated with abnormal subgrain growth. The occurrence of this recovery process is analyzed by taking into account the particle pinning pressure and the orientation dependence of boundary energy and mobility. The cube recrystallization texture observed after annealing at 510°C is discussed in terms of the stability of Mg2Si and Al-Fe-Si precipitates.
Databáze: OpenAIRE