| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Fatigue and Fracture IV: Toward Confident Use in Critical Applications
|
| Presentation Title |
Implementing Processing and Post-processing Strategies to Control Microstructure, Defect Content and Mechanical Properties of Electron Beam Melted Ti-6Al-4V |
| Author(s) |
Jake Benzing, Nikolas Hrabe, Tim Quinn, Enrico Lucon, Magnus Ahlfors |
| On-Site Speaker (Planned) |
Jake Benzing |
| Abstract Scope |
The effects of processing and post-processing conditions on defect content, grain orientation, grain morphology, tensile properties and fracture toughness of Ti-6Al-4V parts (produced by electron beam melting - a powder bed fusion method) have been investigated. Changes in grain orientation from changes in scan length (distance the electron beam travels before turning around on a new track) were examined. Hot isostatic pressing (HIP) is a commercial post-processing step known to seal internal porosity in additively manufactured parts. In the present work, sub-Beta transus and super-Beta transus HIP treatments were employed to manipulate the size, orientation and morphology of grains in Ti-6Al-4V parts. The effects of microstructural variations and porosity on tensile properties and fracture toughness will be presented. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |