About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing: Process-induced Microstructures and Defects
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Presentation Title |
Powder Recyclability and the Effect of Recycled Powder on the Microstructure and Mechanical Behavior of 316L Stainless Steel Manufactured by Directed Energy Deposition |
Author(s) |
Inseo Kim, Sungjae Jo, Yeeun Lee, Saboktakin Rizi Mohsen, Hyoungseop Kim, Jungwook Cho, Jiwoon Lee, Soonjik Hong |
On-Site Speaker (Planned) |
Soonjik Hong |
Abstract Scope |
The part manufacturing industry using additive manufacturing processes is increasing its focus on reusing post-process powders to improve cost competitiveness. However, the powder characteristics of AM-processed powders and their influences need to be addressed. Hence, in this study, we evaluate the powder characterization of the recycled 316L stainless steel powder using the Direct Energy Deposition (DED) process and further investigate its impact on 316L DED as-built samples. We studied the oxidation characteristics of the 316L stainless steel powders and compared the impact of powder recycling on the microstructural and mechanical properties of the as-built samples to those made from fresh powder. Our findings indicate that the use of recycled powders affects the microstructural and mechanical properties of the as-built samples. This was attributed to the presence of oxide-rich inclusions in the microstructure produced from recycled powders. |
Proceedings Inclusion? |
Planned: |