About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Radiation Effects in Metals and Ceramics
|
Presentation Title |
Response of Solidification Cellular Structures in Additively Manufactured 316 Stainless Steel to Heavy Ion Irradiation: an In situ Study |
Author(s) |
Zhongxia Shang, Cuncai Fan, Sichuang Xue, Jie Ding, Jin Li, Thomas Voisin, Yinmin Morris Wang, Haiyan Wang, Xinghang Zhang |
On-Site Speaker (Planned) |
Zhongxia Shang |
Abstract Scope |
In-core or cladding structural materials exposed to heavy ion irradiation often suffer serious irradiation-induced damages. Introducing defect sinks can effectively mitigate irradiation-induced degradation in materials. Here, we investigated the radiation response of additively manufactured 316 austenitic stainless steel with high-density solidification cellular structures via in situ Kr++ irradiation at 400˚C to 5dpa. The study shows that the cellular walls with trapped dislocations can serve as effective defect sinks, thus reduce dislocation loop density compared with the conventional coarse-grained counterparts. This study provides a positive step for the potential applications of radiation-resistant, additively manufactured steels in advanced nuclear reactors. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |