About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Materials, Processes and Applications for Energy Industry
|
| Presentation Title |
Influence of In-Situ Alloying on Mechanical Properties of Additively Manufactured Stainless Steels |
| Author(s) |
Philipp Payer, Anton Hohenwarter, Jürgen Eckert |
| On-Site Speaker (Planned) |
Philipp Payer |
| Abstract Scope |
In the last years the demand of complex weight-optimized geometries increased, due to an increasing need of lightweight parts in automotive, aerospace and medical applications. Powder based additive manufacturing methods such as laser powder bed fusion (LPBF) are suitable to provide such lightweight structures out of a wide range of materials. In contrast to conventional manufacturing techniquess, the mechanical properties of LPBF-manufactured materials depend strongly on processing parameters. This study focuses on the evolution of microstructure and mechanical properties of duplex steels during LBPF with in situ alloying. With in-situ alloying it is possible to tune the microstructure and therefore the mechanical properties. The austenitic phase fracture is proportional to the amount of retained δ ferrite in the as-build state. Controlling the amount of δ ferrite in combination with sufficient building parameters and heat treatments allows to optimize the mechanical properties. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, |