| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing and Innovative Powder/Wire Processing of Multifunctional Materials
|
| Presentation Title |
Enhanced Cryogenic Tensile Properties of Additive Manufacturing STS316L Steel Using Nano-Oxide Dispersion of Reusable Powder |
| Author(s) |
Chohyeon Lee, Jo Wonhui, Saurabh Tiwari, Cho Kisub, Kim Hyoungseop, Seol Jaebok |
| On-Site Speaker (Planned) |
Chohyeon Lee |
| Abstract Scope |
Laser powder bed fusion (L-PBF) has attracted great interest in the aerospace sector because it can produce complex parts with high accuracy. In the L-PBF of metallic materials, costs, and material yields strongly depend on the ability to reuse powder efficiently. However, some of the powders are exposed to high temperatures during the manufacturing process resulting in an alteration of the feedstock properties if it reused. Therefore, to investigate the change of the powder during the process and the effect of the powder on the printed parts, we tried to investigate the effect of reused STS316L powders on the tensile properties of their printed products under liquid nitrogen temperature. The powders were used, collected, sieved, and reused up to 15 times with all steps from the original powder. This study aimed to observe martensitic transformation through fine structure analysis at extremely low temperatures. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Iron and Steel, Recycling and Secondary Recovery |