| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Materials Design and Alloy Development V – Design Fundamentals
|
| Presentation Title |
Evaluation of SLM Parameters for Producing Elementally Homogeneous Printed Products Using Novel Dry Metal Alloy (DMA) Powder Feedstock |
| Author(s) |
Stephen A C Hanson, Daniel Jacintho, Janice Lucon, Sudhakar Vadiraja |
| On-Site Speaker (Planned) |
Stephen A C Hanson |
| Abstract Scope |
A component of metal powder bed fusion technologies is the powder feedstock. Dry metal alloying (DMA) is a process that involves mixing elemental and/or ferro-alloy powders (e.g., iron with ferrochromium, ferromanganese, etc.) in an acoustic mixer to achieve bulk mixed powder composition matching the desired alloy. DMA allows a high level of flexibility – permitting alloys tailored to the requirements of service. Optimization of print parameters while using DMA during selective laser melting (SLM) is underway. Short melt pool residence times in SLM present challenges in achieving compositional homogeneity. Updates related to improving deposit characteristics for 304L stainless steel will be discussed. Characterization analysis will be presented, including optical microscopy, scanning electron microscopy, elemental mapping, and bulk composition analyses. Improvements on compositional homogeneity while using DMA during SLM will be reported. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Iron and Steel |