| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Spatially Tailored Materials: Processing-Structure-Properties
|
| Presentation Title |
The Role of Heterogeneous Microstructure on the Corrosion Resistance of Wire-arc Directed Energy Deposited Iron-based High Entropy Alloys |
| Author(s) |
Tanaji Paul, Tyler Dolmetsch, Blanca Palacios, Sohail Mohammed, Arvind Agarwal |
| On-Site Speaker (Planned) |
Tanaji Paul |
| Abstract Scope |
High entropy alloys (HEAs) are excellent high-performance materials due to their structural stability and resistance to oxidation and corrosion in harsh environments. However, manufacturing large-scale structural HEA components is hindered by the absence of understanding correlations between additive processing strategy and the resulting microstructure-property characteristics. This study investigates large-scale additive manufacturing of an iron-based HEA by wire-arc directed energy deposition technique. The evolution of temperature during the deposition of each layer of Fe-HEA was measured by thermocouples. Temperature measurements were integrated with the thermal gradient obtained in each layer to discern the thermodynamic formation of intermetallic phases in the Fe-based matrix. Site-specific profilometry-based indentation plastometry analysis of this component enabled the establishment of the role of this heterogeneous microstructure on their tensile plasticity. Overall, the understanding of deposition-microstructure-mechanics correlations harbors the potential for advancement in the large-scale additive manufacturing of structural components with complex microstructures. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, Phase Transformations |