| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Fatigue and Fracture: Towards Rapid Qualification
|
| Presentation Title |
Investigation of the Influence of Oxygen Distribution on the Processability and Fatigue Properties of the LPBF Processed Ti-6Al-4V |
| Author(s) |
Mahdi Habibnejad |
| On-Site Speaker (Planned) |
Mahdi Habibnejad |
| Abstract Scope |
One of the main elements influencing the printed properties of Ti-6Al-4V components is the oxygen content, which can be distributed at either interstitial free positions or surface forming grades 23 and 5. Higher oxygen content of the grade 5 would enhance the strength and the lower oxygen content of the grade 23 would result in superior ductility. The mixture of above grades could also yield the target oxygen content but would bring heterogeneity in the localized oxygen distribution. This paper is to present the experimental data to clarify the uncertainties introduced to the LPBF processability of the uniform and mixed powders with a focus on fatigue properties. For this purpose, two powder batches containing grade 23 and a combination of grades 5 and 23 have been designed and processed by LPBF process to assess the resulted microstructure. Also, the correlation amongst the microstructure and fatigue properties have been discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Other, Other, |