About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
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| Symposium
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Phase Stability, Phase Transformations, and Reactive Phase Formation in Electronic Materials XXV
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| Presentation Title |
Utilizing advanced microscopy and CALPHAD-based modeling to investigate phase stability and transformation kinetics in
Mg–Zn–Y–Zr–RE and Mg–Zn–Y–Mn alloys
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| Author(s) |
Te-Cheng Su, Yu-Hui Chan, Tzu-Yun Huang, Kai-Yu Liang, Hao-Chuan Huang, Hsiu-Chien Chan, Yen-Fang Song, Gung-Chian Yin |
| On-Site Speaker (Planned) |
Te-Cheng Su |
| Abstract Scope |
Magnesium alloys strengthened by multiple intermetallic phases are of great interest for structural and functional applications requiring light weight, thermal conductivity, damping capacity, and mechanical performance. In this study, two Mg–Zn–Y-based systems—Mg–Zn–Y–Zr–RE and Mg–Zn–Y–Mn—are investigated with a focus on the formation, stability, and morphology of second phases such as W phase, LPSO, Zn2Zr3, αMn, and elemental Y. CALPHAD-based thermodynamic modeling was employed to construct multicomponent phase diagrams and identify key intermetallics. To analyze microstructural evolution during heat treatment, phase transformation kinetic simulations were conducted to predict phase formation sequences and growth behavior under realistic thermal conditions. Synchrotron X-ray tomography and high-resolution electron microscopy were used to validate the predicted phases. This integrated computational–experimental approach enables deeper understanding of microstructure–property relationships in high-performance magnesium alloys and provides a design strategy for tailoring phase constitution in advanced lightweight materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnesium, ICME, Phase Transformations |