| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Spatially Tailored Materials: Processing-Structure-Properties
|
| Presentation Title |
Microstructure and mechanical properties of in-situ alloyed steels via wire arc directed energy deposition |
| Author(s) |
Kazi Moshiur Rahman, Andrzej Nycz, Saket Thapliyal |
| On-Site Speaker (Planned) |
Kazi Moshiur Rahman |
| Abstract Scope |
Compared to a single wire feeder, incorporation of multiple wire feeders in wire arc-directed energy deposition (WA-DED) additive manufacturing (AM) enables high-throughput screening of novel alloy compositions with application-specific microstructure and properties, and also allow compositional gradation within a single component. In this work, the microstructural evolution and mechanical behavior of the WA-DED in-situ alloyed compositions of duplex stainless steel 2209 and martensitic stainless steel 410 are evaluated. A typical duplex stainless steel 2209 exhibits superior toughness, while martensitic stainless steel 410 is known for high strength. Therefore, the optimized composition potentially enables synergistic strength and toughness. Microstructural characterization reveals the presence of retained austenite, martensite and ferrite phases within the deposited beads. Mechanical behavior, including microhardness and tensile behavior is discussed. The discussed high-throughput alloying approach captures the process thermokinetics of fusion AM and augments the computational approaches to high-throughput alloy discovery for AM. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Phase Transformations, Mechanical Properties |