| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Microstructural and Mechanical Long-term Stability of AM Materials
|
| Presentation Title |
The Effects of Secondary Elements on The Creep and Fracture Behavior of Additively Manufactured Nickel-Based Superalloys |
| Author(s) |
Theophil Jonathan Oros, Michael Ernest Kassner, Andrea Maria Hodge |
| On-Site Speaker (Planned) |
Theophil Jonathan Oros |
| Abstract Scope |
Metal additive manufacturing (AM) offers potential economic benefits and enhanced manufacturing capabilities. However, the unique processing conditions of AM lead to distinct material properties compared to those produced by conventional synthesis methods, primarily due to variations in microstructure and material composition. High-temperature creep experiments were conducted on both wrought and AM Inconel 718 (IN718) to compare the differences between alloys produced by these methods. The AM alloy exhibited inferior elevated-temperature creep ductility compared to the wrought alloy, attributed to sulfur embrittlement, consistent with our previous findings on Inconel 625. To improve the high-temperature creep ductility, compositionally modified AM IN718 alloys were synthesized to mitigate the harmful effects of sulfur. The high-temperature creep and fracture behavior of these modified alloys will be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, Other |