| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Fatigue and Fracture: Towards Accurate Prediction
|
| Presentation Title |
Post-Processing Strategies to Improve Fatigue and Fracture Properties of Net-Shape Titanium Parts |
| Author(s) |
Jake T. Benzing, Orion Kafka, Cassidy Allen, Alec Saville, Nik Hrabe, Sara Randall, Julius Bonini, Edwin Glaubitz, Nicholas Derimow, Chad Beamer, Ryan Fishel |
| On-Site Speaker (Planned) |
Jake T. Benzing |
| Abstract Scope |
Recent improvements in scan strategy have reduced porosity within additively manufactured titanium parts, which increases confidence for many industries, especially those that rely on hot isostatic pressing to seal the internal pores, prior to machining and fatigue testing. However, not all manufactured parts will undergo machining, which means rough surfaces remain and can influence high-cycle fatigue performance. In this work, microstructure has also been shown to play a large role in the fatigue and fracture performance, even in net-shape titanium parts. Through vacuum furnace treatments and hot isostatic pressing strategies, the relationships between post-processing, grain structure, pore structure, surface morphology, tensile properties, and rotating bending fatigue performance will be discussed. Historical data of machined samples will be included as a comparison to establish certain performance debits within this processing-structure-property framework for additively manufactured titanium parts. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Titanium, Mechanical Properties |