| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Hume-Rothery Symposium on Thermodynamics of Microstructure Stability and Evolution
|
| Presentation Title |
Guiding the design of microstructure and mechanical properties of alloys using integrated phase-field simulation |
| Author(s) |
Yuhong Zhao |
| On-Site Speaker (Planned) |
Yuhong Zhao |
| Abstract Scope |
Integrated phase-field simulatoins are successfully applied to guide designing high-performance alloys and manufacturing process. For example, (1) by combining macro process data from casting software with the crack criteria and Nb rich precipitates, the precipitation condition of NbC as the crack sources in austenitic stainless steel are predicted, thereby changing casting process parameters, reducing cracks, and increasing the product qualification rate from 40% to over 80%; (2) capturing the entire spinodal decomposition stage and internal microstructure evolution of Mg-Li based alloys, revealing and designing the strengthen mechanism of Mg-Li-Al alloy with ultra-high specific strength (470~500 kNmkg-1) that almost surpassing all engineering alloys; and (3) adjusting chemical composition or preparation process parameters of high performance Mg/Al based alloys by simulating corresponding dendritic growth and morphology transformation. The above work demonstrate the enormous potential of phase-field methods in discovering new multi-scale phenomena, designing high-performance alloys, and optimizing process parameters. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Computational Materials Science & Engineering, Modeling and Simulation, Solidification |