About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Interactions between Energy and Materials
|
| Presentation Title |
Tribo-Mechanical Behavior of DED Processed Yttria Reinforced SS316L for Nuclear Energy Applications |
| Author(s) |
Manikanta Grandhi, Sudip Saha, Changyu Ma, Bruce Kang, Sougata Roy, Zhichao Liu |
| On-Site Speaker (Planned) |
Manikanta Grandhi |
| Abstract Scope |
The performance of steel cladding tubes and fuel rod components is critical for assessing the reliability of modern nuclear reactors. However, intense neutron irradiation degrades the mechanical and wear-resistant properties of the steel components. To address this challenge, oxide dispersion strengthened (ODS) steels are promising due to their potential for superior irradiation resistance. Unfortunately, traditional ODS powder alloying methods often lead to uneven oxide particle distribution during additive manufacturing (AM) process. This study introduces a novel powder processing method called mechano-chemical bonding (MCB) to achieve homogeneous oxide nanoparticle dispersion within a steel matrix, specifically ODS austenite steels (SS 316L) alloys. MCB-produced ODS SS 316L alloys with varying concentrations of Yttrium Oxide (Y2O3) were fabricated using directed energy deposition (DED)-AM and evaluated. The results demonstrate the impact of Y2O3 content on the alloys' mechanical and tribological properties, offering a potential solution for enhancing the performance of nuclear reactor components. |