| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing and Alloy Design: Bridging Fundamental Physical Metallurgy, Advanced Characterization Techniques, and Integrated Computational Materials Engineering for Advanced Materials
|
| Presentation Title |
Comparative Analysis of DED and LPBF on the Microstructure and Mechanical Properties of NiSi11.9Co3.4 and NiSi11.2Mo1.8 Alloys |
| Author(s) |
Ibrahim Mohammad, Tiziano Trapletti, Kai Zhang, Ragnhild Elizabeth Aune |
| On-Site Speaker (Planned) |
Ibrahim Mohammad |
| Abstract Scope |
The present study compares the properties of 3D printed samples produced from NiSi11.9Co3.4 and NiSi11.2Mo1.8 powders using the Additive Manufacturing (AM) techniques Directed Energy Deposition (DED) and Laser Powder Bed Fusion (LPBF). The resulting microstructures and internal porosity of the prints were analyzed using standard analytical techniques such as Light Optical Microscopy (LOM), Scanning Electron Microscopy (SEM), and X-ray Diffraction (XRD), and revealed distinct microstructural differences. These differences were also found to impact the mechanical properties of each printed sample, as established by utilizing the Vickers microhardness test. X-ray Computed Tomography (XCT) was used to quantify and visualize the internal porosity in each case, giving a detailed insight into the correlation between the printing techniques and the internal defects. The obtained findings underscore the importance of selecting the appropriate AM technique when designing and manufacturing high-performance components/parts in various industries. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Solidification |