Hot Deformation Behavior and Microstructure of 6069 Aluminum Alloy

Hui Zhong Li; Jun Jiang; Min Deng; Xiao Peng Liang; Jie Ouyang

doi:10.4028/www.scientific.net/MSF.788.201

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HomeMaterials Science ForumMaterials Science Forum Vol. 788Hot Deformation Behavior and Microstructure of...

Hot Deformation Behavior and Microstructure of 6069 Aluminum Alloy

Abstract:

The deformation behavior and microstructure of 6069 aluminum alloy have been studied by isothermal compression at temperature ranging from 300°C to 450°C on Gleeble-1500 machine at strain rates from 0.01 to 10s^-1. The results show that the deformation temperature and strain rate is essential to the flow characteristic, and the main deformation mechanism for 6069 aluminum alloy is dynamic recovery at low strain rates. The dynamic recrystallization take place at the strain rates of 10s^-1 and deformation temperature ranges of 300~350°C. At constant strain rate, the flow stress and steady-state flow stress decrease with deformation temperature increasing. While at constant temperature, the flow stress and steady-state flow stress increase with increasing strain rate. The processing map at the strain of 0.7 is obtained and the map exhibits two safe deformation domains (300~350°C at 1~10s^-1 and 380~450°C at 0.01~0.3s^-1).

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Periodical:

Materials Science Forum (Volume 788)

Pages:

201-207

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.788.201

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Online since:

April 2014

Authors:

Hui Zhong Li*, Jun Jiang, Min Deng, Xiao Peng Liang, Jie Ouyang

Keywords:

6069 Aluminum Alloy, Hot Deformation, Microstructure, Processing Map

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