| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Effect of Post Thermal Processing Conditions on Physical and Mechanical Properties of LPBF Processed Inconel 718 |
| Author(s) |
Swathi Vunnam |
| On-Site Speaker (Planned) |
Swathi Vunnam |
| Abstract Scope |
Laser powder bed fusion (LPBF) processed material performance strongly depends on the post thermal processing conditions. This study investigates the material properties of Inconel 718 processed through a roller recoating process with fine powder having a median particle size D50 <11 µm in different post-thermal conditions. Three sets of specimens were printed using identical printing conditions and tested in as-built, stress-relieved, and solution-aged post thermal conditions. Average material density ≥ 99.95% and surface roughness Ra < 4 µm was achieved across the build platform in as-built condition. Homogenization coupled with double aging achieved superior mechanical properties with a significant increase in hardness and tensile strength. This study demonstrates that the combination of the roller spreading mechanism with fine powder can be utilized to produce high-quality parts by employing the appropriate post thermal processing. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |