| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Fatigue and Fracture: Towards Rapid Qualification
|
| Presentation Title |
Fatigue Behavior of Novel PBF-L Ti-6Al-4V High Pressure Heat Treatments |
| Author(s) |
Nik Hrabe, Nicholas A. Derimow, Jake Benzing, Chad Beamer, Ryan Fishel, Chris Hadley, Mahesh Waje |
| On-Site Speaker (Planned) |
Nik Hrabe |
| Abstract Scope |
The additive manufacturing of Ti-6Al-4V alloy presents a unique number of challenges for material qualification. That is, the microstructure found in wrought Ti-6Al-4V alloy is attributed as a major contributor to the fatigue performance in historically qualified titanium alloys used in fracture-critical applications. However, wrought (equiaxed/bimodal) microstructures are currently unobtainable with laser powder-bed fusion techniques. This presentation will cover three post-processing high pressure heat treatments on Ti-6Al-4V with respect to the high cycle fatigue performance by means of fully reversed rotating bending fatigue testing. Results show that post-build high pressure heat treatments can bring AM Ti-6Al-4V into fatigue performance that is consistent with wrought Ti-6Al-4V, and surpasses performance expectations with extra low interstitial oxygen content. Distribution Statement A: Approved for public release; distribution is unlimited. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, Titanium |