| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing and Innovative Powder/Wire Processing of Multifunctional Materials
|
| Presentation Title |
Alloy Development through In-situ Mixing of Stainless Steel 316L and Inconel 718 Using Directed Energy Deposition |
| Author(s) |
Noah A. Sargent, Samad Firdosy, Kinga A. Unocic, Jonathan D. Poplawsky, Richard Otis, Wei Xiong |
| On-Site Speaker (Planned) |
Noah A. Sargent |
| Abstract Scope |
Additive manufacturing is a powerful tool for rapid prototyping and alloy design. However, the cyclic heating and cooling of melting processes often result in large columnar grains that dominate the as-printed microstructure, causing strong texture with anisotropic properties that limit the application of additive manufacturing. In this work, we apply powder-based directed energy deposition to discover new alloys with refined grains using mixtures of Inconel 718 superalloy (IN718) and stainless steel 316L (SS316L). The oxidation behavior of the SS316L and IN718 mixtures at 800°C is investigated to study the impact of composition on oxide scale formation. We have further performed mechanical tests of SS316L and IN718 multi-material joints after post-heat treatment guided by the CALPHAD tools. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, ICME, Characterization |