| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Materials Design and Alloy Development VI – Closed-Loop Alloy Design
|
| Presentation Title |
Compositional and Microstructural characterization of 304L and 316L Stainless Steels Produced by L-PBF Additive Manufacturing Using Novel Dry Metal Alloy (DMA) Powder Feedstock |
| Author(s) |
Stephen A C Hanson, Sudhakar Vadiraja, Nathan Huft |
| On-Site Speaker (Planned) |
Stephen A C Hanson |
| Abstract Scope |
The dry metal alloying (DMA) novel powder feedstock process involves mixing elemental and/or ferro-alloy powders (e.g., iron with ferrochromium, ferromanganese, etc.) in an acoustic mixer to achieve a bulk mixed powder composition that matches the desired alloy composition. DMA allows a high level of flexibility – permitting alloys tailored to the required service. Very short melt pool residence times in L-PBF presents a challenge in achieving compositional homogeneity through in-situ alloying. We have previously reported successfully producing elementally homogenous L-PBF deposits. Present work involves improving the printing properties of DMA 304L and 316L stainless steels in a OneClick Metal MPRINT. Cubes have been produced from DMA feedstock using the MPRINT 3d printer. Material characterization includes optical microscopy, scanning electron microscopy, and compositional analysis of DMA specimens produced using L-PBF. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Iron and Steel, Additive Manufacturing |