|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Additive Manufacturing for Energy Applications III
||Tailored Radiation Responses of 9-12 wt.% Cr Steels Through Additive Manufacturing
||Kevin Field, T.M. Kelsy Green, Weicheng Zhong, Pengyuan Xiu, Gabriella Bruno, Niyanth Sridharan, Lizhen Tan, Maxim Gussev, Ying Yang
|On-Site Speaker (Planned)
The radiation response of 9-12 wt.% Cr steels is directly tied to both the starting microstructure and the irradiation conditions. In this talk, I will discuss our recent efforts to develop frameworks for tailoring the radiation response of advanced 9-12 wt.% Cr steels by altering their microstructure(s) through additive manufacturing. A particular focus will be on steels manufactured using either powder-blown or wire-arc directed energy deposition techniques with an emphasis on composition modification to alter the steel’s sink strength(s) - either within the manufacturing feedstock or through intrinsic composition modification during deposition. The viability of using the proposed frameworks are validated by a set of targeted ion irradiations coupled with advanced characterization, which show suppression of key radiation responses such as cavity-induced swelling. The pitfalls of using additive manufacturing for 9-12 wt.% Cr steels will also be discussed, including controlling precipitation behavior and print-to-print variability under irradiation.