Dynamic Recrystallization Kinetics and Microstructural Evolution for LZ50 Steel During Hot Deformation

2016 ◽  
Vol 25 (9) ◽  
pp. 3646-3655 ◽  
Author(s):  
Shiwen Du ◽  
Shuangmei Chen ◽  
Jianjun Song
Keyword(s):  
Dynamic Recrystallization ◽  
Microstructural Evolution ◽  
Hot Deformation ◽  
Recrystallization Kinetics ◽  
Lz50 Steel

Flow Behavior and Microstructural Evolution of a 7039 Aluminum Alloy during Hot Deformation

2011 ◽  
Vol 239-242 ◽  
pp. 2395-2398 ◽  
Author(s):  
Hui Zhong Li ◽  
Xiao Peng Liang ◽  
Min Song ◽  
Min Zeng
Keyword(s):  
Aluminum Alloy ◽  
Flow Stress ◽  
Dynamic Recrystallization ◽  
Strain Rate ◽  
Microstructural Evolution ◽  
Hot Deformation ◽  
Deformation Temperature ◽  
Flow Behavior ◽  
Thermal Simulation ◽  
Strain Rates

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.

Cellular Automata Simulation on Dynamic Recrystallization of TA16 Alloy during Hot Deformation

2016 ◽  
Vol 849 ◽  
pp. 245-250 ◽  
Author(s):  
Fei Han ◽  
Rong Quan Chen ◽  
Chun Hui Yang ◽  
Xian Min Li ◽  
Ding Chun Wang
Keyword(s):  
Cellular Automata ◽  
Dynamic Recrystallization ◽  
Microstructural Evolution ◽  
Hot Deformation ◽  
Volume Fraction ◽  
Cellular Automata Model ◽  
Proposed Model ◽  
Ca Model ◽  
Strain Stress ◽  
Recrystallized Grain Size

Dynamic recrystallization is responsible for the properties of the final product of TA16 alloy in hot deformation. In this study, a cellular automata model with dynamic recrystallization (DRX-CA) was developed to simulate and predict the microstructural evolution of TA16 alloy during hot deformation with material constants obtained from hot compressive tests. The proposed model has a capability of tracking the deformation history and microstructural evolution. The numerical simulation results obtained by using the developed DRX-CA model were compared to those experimental data obtained for validation and accurately capture the relations among strain, stress, volume fraction recrystallization, recrystallized grain size and deformation temperature.

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