| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Titanium-based Materials: Processing, Microstructure and Material Properties
|
| Presentation Title |
Effect of Heat Treatment on Laser Powder Bed Fusion Ti-6Al-4V |
| Author(s) |
Katie O'Donnell, Anthony Rollett, Evan Adcock, John Lewandowski, Brett Ley |
| On-Site Speaker (Planned) |
Katie O'Donnell |
| Abstract Scope |
Additive manufacturing of titanium alloys offers enormous promise in many industries, including the aerospace and biomedical fields. Processes such as laser powder bed fusion eliminate the waste involved with traditional titanium manufacturing methods and allow for complex geometries and the reduction of assemblies into single parts. However, additive manufacturing can introduce textured microstructures and porosity that may be undesirable in some applications. As such, post-processing of additively manufactured parts can be used to influence the final materials state, with hot isostatic pressing capable of reducing porosity in addition to the higher temperatures involved altering the microstructure. Ti-6Al-4V samples were produced and subjected to post-processing steps; two temperatures were chosen as heat treatments, and then duplicated with hot isostatic pressing to examine the influence of porosity independent from microstructure changes. Mechanical and microstructural testing was then carried out on the resulting samples. |