About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing, Directed Energy Deposition of Metals: Processing – Microstructure – Mechanical Property Relationships
|
| Presentation Title |
Creep and Creep-Fatigue Behavior of Conventional and Additively Manufactured SS316L for Nuclear Applications |
| Author(s) |
Mahmoud Y. Hawary, K.L. Murty, Nadia Kouraytem |
| On-Site Speaker (Planned) |
Mahmoud Y. Hawary |
| Abstract Scope |
Developing advanced materials for nuclear reactor environments requires understanding their mechanical stability under high temperatures and stresses. This study compares the creep and creep-fatigue (CF) behavior of conventionally and additively manufactured (AM) SS316L stainless steel. Impression creep (IC) tests and CF testing assessed deformation behavior, emphasizing the impact of processing conditions. Conventionally manufactured SS316L underwent testing across temperatures and stress conditions, while AM samples were evaluated using varied laser processing parameters. Electron backscatter diffraction (EBSD), transmission electron microscopy (TEM), and scanning electron microscopy (SEM) characterized grain structure evolution, dislocation dynamics, precipitate formation, and fracture mechanisms. Findings highlight critical relationships between processing, microstructure, and mechanical performance, enhancing material optimization and reliability for nuclear reactor components. |