| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Marine Materials and Structures
|
| Presentation Title |
Process and Heat Treatment Effects on the Microstructure and Mechanical Properties of Nickel Aluminum Bronze (NAB) Fabricated by W-LDED |
| Author(s) |
Nahal Ghanadi, Jakub Preis, Kwangtae Son, Seongun Yang, Somayeh Pasebani |
| On-Site Speaker (Planned) |
Nahal Ghanadi |
| Abstract Scope |
Nickel aluminum bronze (NAB) wire with chemical composition of Cu-8.64Al-4.2Ni-3.2F (wt%) was fabricated using laser-directed energy deposition (LDED). This research aims to investigate the effect of varying LDED parameters and subsequent heat treatments at 550, 650, and 750°C over periods ranging from 1 to 10 hours on the microstructure and mechanical properties of the NAB alloy. A range of specimens were fabricated by varying laser power (600-1200 W) and laser head transverse speed (300-1200 mm/s). Energy dispersive spectroscopy and X-ray diffraction analysis were used for phase identification of the samples and revealed copper-rich α phase containing κ precipitates in the as-printed samples. For further phase analyses, including chemical compositions and their locations with respect to grain boundaries, transmission electron microscope was utilized. Tensile and Microhardness tests were performed to obtain the mechanical properties of the specimens. The as-printed LDED samples exhibited higher strength and ductility compared to their as-cast counterparts. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Mechanical Properties |