| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Atomistic Simulations Linked to Experiments to Understand Mechanical Behavior: A MPMD Symposium in Honor of Professor Diana Farkas
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| Presentation Title |
Molecular Dynamics Simulation Study on the Phase Transformation Behaviors of Additively Manufactured Shape-Memory Alloys |
| Author(s) |
Jong-Hoon Park, Won-Seok Ko |
| On-Site Speaker (Planned) |
Jong-Hoon Park |
| Abstract Scope |
Shape-memory alloys (SMAs) are functional materials used in various applications, and NiAl-based SMAs are particularly noteworthy for high-temperature applications. Because their high brittleness limits their processability, recent attempts have been made to produce parts using the additive manufacturing (AM) process. However, the effects of various processing variables on the formation of defects, phase transformation characteristics, and resulting performance of the shape-memory effect and superelasticity have not yet been clarified. In this study, we tackle this issue by performing atomistic simulations, such as the molecular dynamics simulations. Especially, we tried to examine the characteristics of NiAl-based SMAs by analyzing various processing variables, such as the scanning speed and power of the laser, cooling rate, and the composition of the SMA powder. We expect that the present results provide a relevant guidance for deducing optimal processing conditions to improve the overall performance of additively manufactured SMAs. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Additive Manufacturing, Other |