About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Design, Materials, Manufacturing, Challenges and Applications
|
| Presentation Title |
Additive Manufacturing of Multifunctional Fe–Cr–Al-Base Alloys
via Laser Powder Bed Fusion |
| Author(s) |
Sydney Lynch, Thinh Huynh, Kevin Graydon, Brendan Ensor, Paul S. Day, Kiran Nimishakavi, Yongho Sohn |
| On-Site Speaker (Planned) |
Sydney Lynch |
| Abstract Scope |
Laser Powder Bed Fusion (LPBF) is a promising manufacturing technique for fabricating complex components for nuclear applications, particularly those requiring corrosion and oxidation resistance, neutron absorption, and fission gas accommodation. In this study, the LPBF processability of Fe–Cr–Al alloys was investigated through hot cracking susceptibility analysis using the (dT/dfs1/2) index and microstructural characterization of both single laser tracks on bulk alloys and LPBF-fabricated samples produced from Fe–12Cr–6Al (wt.%) alloy powders. The mechanical performance of the LPBF-processed Fe–12Cr–6Al alloy was evaluated using instrumented hardness measurements and tensile testing. Correlations between calculated and experimental results confirmed the excellent buildability of Fe–12Cr–6Al for LPBF. Further exploration of alloying strategies to enhance neutron absorption, as well as LPBF-enabled structural designs for fission gas accommodation, will be also presented. |