About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
Effects of Fast Neutron Irradiation on the Microhardness of Inconel 625 and Inconel 718 Materials Fabricated via Laser Powder Bed Fusion |
Author(s) |
Mohanish Andurkar, Valentina O'Donnell, Tahmina Keya, Bart C Prorok, John M Gahl, Scott M. Thompson |
On-Site Speaker (Planned) |
Mohanish Andurkar |
Abstract Scope |
The demand for advanced materials for next generation nuclear reactors has intensified the need to explore additive manufacturing (AM) processes as an alternate means of fabricating components. In this study, Inconel 625 and Inconel 718 samples fabricated using Laser Powder Bed Fusion (L-PBF) were irradiated using fast neutrons at the research cyclotron at University of Missouri. Samples were as-printed or heat treated at 700, 900, or 1050 ℃ for 1 hour to understand the impact of heat treatment any radiation hardening. Wrought Inconel 625 and Inconel 718 samples were also inspected for experimental control. All samples were irradiated for either 5 or 10 weeks resulting in a total fluence of 4x1015 and 6x1015 neutrons/cm², respectively. To quantify radiation damage, the Vickers microhardness was measured before and after fast neutron irradiation. Results show that the additively manufactured samples possessed a higher tolerance to any radiation hardening. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |