About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Materials Design and Processing Optimization for Advanced Manufacturing: From Fundamentals to Application
|
Presentation Title |
Microstructural Evolution of Compositionally Graded Proton Irradiated 316 Stainless Steel as a High Throughput Alloy |
Author(s) |
Laura Hawkins, Jingfan Yang, Xiaoyuan Lou, Miao Song, Yongfeng Zhang, Daniel Schwen, Lin Shao, Lingfeng He |
On-Site Speaker (Planned) |
Laura Hawkins |
Abstract Scope |
Development of high throughput materials characterization is an important capability for reducing the cost in classification of Generation IV candidate materials. A method for using laser engineering net shaping (LENS) to manufacture a compositionally graded 316L bar is reported. This study demonstrates high throughput capability by utilization of transmission electron microscopy (TEM) to characterize the effect of Hf as an oversized solute on irradiation response. Two types of additively manufactured samples were prepared: the as-built as a base material and the heat-treated material with a grain structure representative of traditionally forged 316L. Voids, dislocations and grain boundary segregation were characterized and the effect of precipitates on radiation damage was studied. The radiation hardening, measured from nanoindentation, was compared to the dispersed-barrier hardening model calculated from TEM results. The study demonstrated the feasibility of using compositionally graded steels as high throughput experimentation. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Characterization, Nuclear Materials |