| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Thermodynamics and Kinetics of Alloys II
|
| Presentation Title |
Feasibility Map: A CALPHAD-Based Tool to Design Nonlinear Composition Pathway for Desired Properties of Materials Processed by Advanced Manufacturing |
| Author(s) |
Hui Sun, Brandon Bocklund, Zhening Yang, Bo Pan, Jingjing Li, Allision Beese, Shun-Li Shang, Zi-Kui Liu |
| On-Site Speaker (Planned) |
Hui Sun |
| Abstract Scope |
The proposed feasibility map incorporates equilibrium thermodynamic calculations to predict equilibrium phases within a given range of temperatures and compositions, and the Scheil-Gulliver simulations to predict the formed phases under rapid cooling conditions. The feasibility map hence offers two limits for both the slow and fast cooling rates, providing profound insights into the formed phases in various manufacturing procedures. It enables calculating mechanical properties like bulk modulus and yield stress based on the phases predicted. At the same time, five different criteria of crack susceptibility are also applied based on the Scheil-Gulliver simulations to assess crack risk. Using the present feasibility map, for example, SS316 to IN625, SS316 to Ti6Al4V, additive manufacturing process can be optimized to achieve desired phases and properties while minimizing the undesired ones. This CALPHAD-based feasibility map enhances control over composition pathways, ensuring superior mechanical properties of the manufactured components. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Computational Materials Science & Engineering, ICME |