| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Fatigue and Fracture: Towards Accurate Prediction
|
| Presentation Title |
On the Structural Integrity of Fe-36Ni Invar Alloy Processed by Different Additive Manufacturing Techniques |
| Author(s) |
Thomas Wegener, Thomas Niendorf, Johannes Günther |
| On-Site Speaker (Planned) |
Thomas Wegener |
| Abstract Scope |
Due to its low CTE and excellent mechanical properties in cryogenic environment the Fe-36Ni alloy Invar is commonly used as a high precision and highly reliable material in components where superior dimensional stabilities are required. As a result of high ductility and pronounced work hardening combined with a low heat conductivity conventional machining of Invar is challenging. These challenges become most pronounced when machining of complex precision components is required. Additive manufacturing (AM) techniques represent powerful and promising candidates to overcome these challenges as they enable a tool-free near-net shape production of complex freeform components. Since many components made of Invar, e.g. precision optics instruments, are used under very complex loading regimes, often including cyclic loads, the performance under fatigue loading needs to be investigated. Thus, the present study will provide insights on the structural integrity of Fe-36Ni Invar alloy processed by different AM techniques. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, Characterization |