About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
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| Symposium
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Additive Manufacturing: Materials Design and Alloy Development VII – Design With Multi-Modal and Field Data by Integrating Uncertainty
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| Presentation Title |
Impact of Oxygen Homogeneity on the Processability and Properties of Ti-6Al-4V Parts: Addition Out of Spec Powders |
| Author(s) |
Mahdi Habibnejad-Korayem |
| On-Site Speaker (Planned) |
Mahdi Habibnejad-Korayem |
| Abstract Scope |
A high degree of consistency in the chemical composition of powder feedstock could influence powder flowing, packing ability, and consequently the final properties of printed components. For the case of Ti-6Al-4V composition, one of the main elements influencing the final properties of printed components is the oxygen content, which can be distributed at either the interstitial free positions or surface forming different grades of 23 and 5. In general, the main criterion to select among the above material grades is the fact that higher oxygen content of the grade 5 would enhance the strength results and the lower oxygen content of the grade 23 would result in superior ductility. The mixture of the above grades could also yield the target oxygen content but would bring inconsistency and heterogeneity in the localized oxygen distribution. This paper is to present the experimental data to clarify the uncertainties introduced to the laser powder bed fusion (LPBF) processability of the uniform and mixed powders and comment on the final mechanical and physical properties of LPBF printed components. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Other, |