| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
High Temperature Creep Properties of Advanced Structural Materials
|
| Presentation Title |
The Elevated Temperature Creep, Fatigue, and Fracture Behavior of Nickel-based Superalloys Manufactured by Direct Metal Laser Sintering |
| Author(s) |
Michael Kassner, Theophil Oros, Kwangtae Son, Lyle Levine, Thien Phan |
| On-Site Speaker (Planned) |
Michael Kassner |
| Abstract Scope |
Elevated temperature creep and fatigue experiments were performed on long term cyclically heat treated wrought and additively manufactured (AM) Inconel 718. The creep strength of the AM Inconel was equal or superior to that of the wrought alloy. However, the elevated-temperature ductility of the AM alloy was clearly inferior to that of the wrought alloy. The elevated-temperature fatigue strength of the AM 718 was also inferior to that of the wrought alloy. These results were comparable to our earlier work on Inconel 625. NanoSIMS, APT, SEM and TEM analyses were conducted on the Inconel 718. The basis for the increase in strength and loss in ductility will be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, High-Temperature Materials, Mechanical Properties |