| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing and Alloy Design: Bridging Fundamental Physical Metallurgy, Advanced Characterization Techniques, and Integrated Computational Materials Engineering for Advanced Materials
|
| Presentation Title |
Microstructural and Crystallographic Aspects Affecting MFIS in NiMnGa Magnetic Shape Memory Alloys Manufactured by LPBF |
| Author(s) |
Anna Wojcik, Wojciech Maziarz, Arkadiusz Szewczyk, Lukasz Zrodowski, Bartosz Morończyk, Rafal Wroblewski, Maciej Kowlaczyk, Robert Chulist |
| On-Site Speaker (Planned) |
Anna Wojcik |
| Abstract Scope |
NiMnGa-based alloys are a group of functional materials having a great application potential due to large reversible strain under a magnetic field obtained with high response frequency. The property distinguishing this system from other shape memory alloys is the extremely low twinning stress of about 0.01 0.5 MPa. Both, the very low twinning stress and related large magnetic field induced strain value observed in single crystals make them a unique system and have raised great research interest both in terms of functional properties and twinning mechanisms. However, due to large production costs of single crystalline materials, many works concerns polycrystals. This work shows complex investigation including production and microstructural characterization of samples produced by LPBF process combined with heat treatment while the second part is focused on the explanation of fundamental mechanism of twin boundary motion ruling the magnetic field induces strain. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Phase Transformations, Characterization |