About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Accelerated Qualification Methods for Nuclear Reactor Structural Materials
|
| Presentation Title |
Extraction of Mechanical Property Information from Ion Irradiated LPBF 316 Steels |
| Author(s) |
Stephen Taller, Wei-Ying Chen, Alec Pfundheller |
| On-Site Speaker (Planned) |
Stephen Taller |
| Abstract Scope |
The ability to extract new mechanical property information from ion irradiated materials and other small-scale specimens would dramatically reduce the demand on our nation’s overly scheduled test reactors and has the potential to accelerate qualification of advanced manufactured steels. Instrumented indentation tests measure force and penetration for the entire time of contact and with the continuous stiffness method (CSM) measure hardness and modulus as a function of depth. The objective is to extract relevant engineering properties from small volumes of irradiated steels fabricated via laser powder bed fusion using state-of-the-art nanomechanical testing. This work determined the differences in nanohardness and elastic modulus from solution annealed, stress relieved, and as-printed 316 stainless steels before and after irradiation with either 5 MeV or 9 MeV self-ions up to 10 dpa in a temperature range from 300 to 600°C. Comparisons and correlations to the fabricated and irradiated microstructures will be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Nuclear Materials, Environmental Effects |