| About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
Advanced Characterization of Materials for Nuclear, Radiation, and Extreme Environments
|
| Presentation Title |
Response of an Additively Manufactured 316 Stainless Steel Subjected to High Temperature Heavy Ion Irradiations |
| Author(s) |
Zhongxia Shang, Cuncai Fan, Jie Ding, Sichuang Xue, Adam Gabriel, Thomas Voisin, Jin Li, Lin Shao, Yinmin Morris Wang, Haiyan Wang, Xinghang Zhang |
| On-Site Speaker (Planned) |
Zhongxia Shang |
| Abstract Scope |
Additive manufacturing has become an appealing technique to fabricate three-dimensional metallic materials and components for nuclear reactors. However, response of additively manufactured alloys to high-dose heavy ion irradiations at elevated temperatures is still not well understood. Here, an additively manufactured 316 austenitic stainless steel with high-density solidification cells was irradiated using Fe ion to a peak dose of ~ 200 dpa at 450 ˚C. Microscopy studies show a smaller Frank loop density and size in the additively manufactured sample compared with its cold worked counterpart, and the cellular structures may largely suppress the formation of perfect loops and dislocation networks and reduce the magnitude of solute segregations than that along high angle grain boundaries. The present work advances the understanding on the high-temperature irradiation response of additively manufactured steels for nuclear reactor applications. |