Flow Behavior and Microstructural Evolution of a 7039 Aluminum Alloy during Hot Deformation
The flow behavior of a 7039 aluminum alloy and the corresponding microstructural evolution during hot deformation were studied by Gleeble-1500 thermal simulation tests, EBSD and TEM observations with temperatures ranging from 300 °C to 500 °C under strain rates from 0.01 s-1 to 10 s-1. It has been shown that the flow stress increases with the decrease in the deformation temperature and increase in the strain rate. The degree of dynamic recrystallization (DRX) increases with the increase in the deformation temperature and strain rate in 7039 aluminum alloy. The complete dynamic recrystallization occurs at 500 °C with a strain rate of 10 s-1.
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
H. Z. Li et al., "Flow Behavior and Microstructural Evolution of a 7039 Aluminum Alloy during Hot Deformation", Advanced Materials Research, Vols. 239-242, pp. 2395-2398, 2011