| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Microstructural Evolution and Material Properties Due to Manufacturing Processes: A Symposium in Honor of Anthony Rollett
|
| Presentation Title |
Separating the Effects of Porosity and Microstructure on the Mechanical Properties of Laser Powder Bed Fusion Ti-6Al-4V |
| Author(s) |
Katie O'Donnell, Brett Ley, John Lewandowski, Anthony Rollett |
| On-Site Speaker (Planned) |
Katie O'Donnell |
| Abstract Scope |
One common post-processing treatment of additively manufactured materials is known as hot isostatic pressing, a combination of heat and pressure that can be used to change the microstructure of a material and close pores created by many additive processing methods, such as powder bed fusion. Notably, fatigue properties and cracking are significantly affected by the porosity of a part, but microstructure cannot be neglected when considering the impact on mechanical properties. Laser powder bed fusion Ti-6Al-4V parts were generated as part of this work and subjected to both hot isostatic pressing at two different temperatures (and a set pressure) as well as heat treatments at those same temperatures (thereby neglecting the effect of pressure). The parts were characterized microstructurally and through fatigue testing afterward to examine the influence of porosity relatively independent from microstructural changes. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Titanium, Characterization |