About this Abstract |
Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
Presentation Title |
Investigation into Microstructure Evolution during Hot Compressions of Mg-Al-Zn-RE Alloy |
Author(s) |
Yu-Ying He, Sheng-Wen Bai, Gang Fang |
On-Site Speaker (Planned) |
Yu-Ying He |
Abstract Scope |
In the present study, the microstructure evolution of a newly developed Mg-Al-Zn-RE alloy was investigated by the combination of experiments and cellular automaton (CA) simulation. A series of uniaxial compression tests at strain rates of 0.001-10 s-1 and deformation temperatures of 573-693 K were performed. Based on the measured flow stress data, the microstructure evolution models of magnesium alloy were calibrated and evaluated. The dependence of model parameters on deformation conditions (deformation temperature and strain rate) was studied by regression analysis. The DRX kinetics under tested conditions was described by the modified Avrami type equation. A two-dimensional CA model was developed to quantitatively and topologically simulate the DRX behavior of magnesium alloy. The prediction results of flow stress curves, final microstructure and DRX fraction evolution show a good agreement with the experimental results. The established CA model is reliable to simulate the microstructure evolution during hot compression of Mg-Al-Zn-RE alloy. |
Proceedings Inclusion? |
Definite: At-meeting proceedings |