| About this Abstract |
| Meeting |
Materials in Nuclear Energy Systems (MiNES) 2021
|
| Symposium
|
Materials in Nuclear Energy Systems (MiNES) 2021
|
| Presentation Title |
Effects of Heat Treatment, Build Angle and Radiation Type on the Hardness and Microstructure of Inconel 625 and 718 Fabricated via Laser-powder Bed Fusion Additive Manufacturing |
| Author(s) |
Valentina O’Donnell, Mohanish Andurkar, Tahmina Keya, Ashley Romans, Greyson Harvill, John Gahl, Scott M. Thompson, Bart Prorok |
| On-Site Speaker (Planned) |
John Gahl |
| Abstract Scope |
Various Inconel 625 and 718 specimens, manufactured via Laser-Powder Bed Fusion (L-PBF), were investigated for micro and nano-hardness, as well as microstructure, before and after irradiations performed at the University of Missouri Research Reactor Center (MURR). Specimens were exposed to a variety of radiation environments. These included a neutron flux of 6.3x10^13 neutrons/cm²/s in the MURR reactor, an accelerator driven fast neutron flux of 3.0x10^9 neutrons/cm²/s, and a direct proton irradiation in excess of 10^14 protons/cm²/s. The MURR cyclotron facility features a 16.5 MeV GE PETtrace cyclotron situated in a vault, allowing for beam extraction and solid target irradiation as well as fast neutron production. Results indicate that, independent of radiation source/type, all L-PBF specimens harden less due to irradiation relative to the wrought control group. Heat treatments at various time lengths and temperatures were found to produce precipitates in the Inconel alloys that affect hardness and radiation damage. |
| Proceedings Inclusion? |
Undecided |