| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Magnesium Technology 2020
|
| Presentation Title |
Application of Three-phase Miscibility Gap Formation Mechanisms in Mg Alloys |
| Author(s) |
Shuanglin Chen, John E Morral |
| On-Site Speaker (Planned) |
Shuanglin Chen |
| Abstract Scope |
Spinodal decomposition is one of the strengthening mechanisms in Mg alloys. Binary two-phase miscibility gaps and spinodal lines are well known and can be found in textbooks. Three-phase miscibility gaps can also form in ternary and higher order systems from a thermodynamic standpoint. Mechanisms to form three-phase miscibility gaps will be summarized based on the work by Gibbs, Schreinemakers and Meijering. Three-phase miscibility gaps, spinodal lines and critical points will be calculated to illustrate how they change with temperature and compositions. Examples in Mg alloys will be presented to demonstrate how the calculated miscibility gaps and spinodal lines can help us better understand phase stabilities and spinodal decomposition during heat treatment process of the alloys. |
| Proceedings Inclusion? |
Planned: |