About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Magnesium Technology 2025
|
| Presentation Title |
Deformation Behavior, Microstructure Evolution and Phase Transformation of Dual-Phase Mg-Li-Zn-Sr-Ca Alloy Under Isothermal Compression |
| Author(s) |
Guobing Wei |
| On-Site Speaker (Planned) |
Guobing Wei |
| Abstract Scope |
Isothermal compression with a strain of 0.9 were conducted on dual-phase Mg-Li-Zn-Sr-Ca alloy by under different temperatures and strain rates . The deformation behavior, microstructure evolution, recrystallization and phase transformation under different deformation parameters were investigated. As the temperature is higher than 523 K, needle-shaped phases precipitated from the β-Li phase, which was confirmed to be α-Mg phase during subsequent characterization. With increasing temperature and reducing strain rate, the quantity and size of it increased, and the morphology evolved from short-needles-shaped into elongated blocks. Due to β-Li phase can be activated more slip system and it can attenuate the accumulation of dislocations. Meanwhile, the high GND density of the α-Mg phase also predicts a higher strain energy and a greater recrystallisation drive force. The intensity of the {0001} basal texture of the α-Mg phase increased with increasing temperature, which is attributed to the selective growth of recrystallized grains. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Phase Transformations, Magnesium, Characterization |