About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing of Metals: Applications of Solidification Fundamentals
|
Presentation Title |
A-20: IN939 Fabricated by the Laser Powder Bed Fusion: The Effect of Process Parameters on the Density, Surface Roughness and Microstructural Properties |
Author(s) |
Merve Nur Dogu, Muhannad Ahmed Obeidi, Hengfeng Gu, Dermot Brabazon |
On-Site Speaker (Planned) |
Merve Nur Dogu |
Abstract Scope |
IN939 is a Ni-based superalloy which is used for the land-based gas turbine engines thanks to its outstanding properties such as high temperature microstructural and mechanical stability, along with high corrosion resistance. The production of intrinsic geometries is not possible in a single step with conventional manufacturing techniques (casting and forging). Laser powder bed fusion (L-PBF) offers many advantages such as the design of freedom and single-step production of intrinsic geometries with nearly zero waste material. IN939 has recently been applied with the L-PBF process. There is still, however, much more work required to understand the effects of the process parameters of the L-PBF on the microstructural and mechanical properties of IN939. In this study, the effect of the process parameters such as laser power, scanning speed and hatch distance of the L-PBF on the microstructural and mechanical properties of IN939 was investigated. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Characterization, High-Temperature Materials |