| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
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| Symposium
|
Additive Manufacturing and Alloy Design: Bridging Fundamental Physical Metallurgy, Advanced Characterization Techniques, and Integrated Computational Materials Engineering for Advanced Materials
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| Presentation Title |
Evaluating Printed 316L Stainless Steel Samples Using Novel Dry Metal Alloy (DMA) Powder Feedstock for Compositionally Uniform |
| Author(s) |
Stephen A C Hanson, Nathan Huft, Sudhakar Vadiraja, Peter Lucon |
| On-Site Speaker (Planned) |
Stephen A C Hanson |
| Abstract Scope |
A novel Dry Metal Alloy (DMA) powder feedstock is used to produce test cubes on a OneClick MPRINT L-PBF printer. The DMA process involves the mixing of ferro-alloy powders (e.g., iron with ferronickel, ferrochromium, etc.) in an acoustic mixer to achieve bulk mixed powder composition matching the desired alloy. DMA allows a high level of flexibility – permitting small batch alloys tailored to the requirements of service. Optimization of print parameters for DMA during L-PBF printing is underway. Short melt pool residence and small volumes of melt, present challenges in achieving compositional homogeneity. Updates on the optimization of print settings for 316L will be discussed. Printing 316L with DMA powder presents specific challenges due to molybdenum’s high melting point, and high density. Characterization analysis will be presented, including optical microscopy, scanning electron microscopy, EDS point analyses, EDS mapping, arc/spark-OES and XRF bulk composition analyses. Improvements on Uniformity will be reported. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Iron and Steel, Characterization |