| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials Processing Fundamentals
|
| Presentation Title |
Effects of Al Substitution for Zn on the Non-equilibrium Solidification Behavior of Zn−3Mg Alloys |
| Author(s) |
Yeqing Wang, Jianrong Gao, Ashwin J. Shahani |
| On-Site Speaker (Planned) |
Yeqing Wang |
| Abstract Scope |
Zn-based alloys may find applications in medical industries because of good biocompatibility. It is of fundamental and technical interest to investigate their solidification behavior in casting. In this work, we investigated solidification paths of Zn-3Mg-2Al alloys using in situ X-ray diffraction technique and thermodynamic calculations. Results showed that compared to the binary Zn-3Mg alloys, the addition of 2% Al does not affect the solidification path. The Laves compound MgZn2 is the primary phase and its growth is followed by growth of a metastable MgZn2/Zn eutectic or stable Mg2Zn11/Zn eutectic. Competitive nucleation and growth of stable and metastable phases is discussed by calculations of their crystal/melt interfacial energy and interface growth kinetics. YWQ and JG acknowledge support by the National Natural Science Foundation of China (U1502272). |
| Proceedings Inclusion? |
Planned: |