| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Microstructural and Mechanical Properties Structural Repairs of near α and near ß Titanium Alloys by Additive Friction Stir Deposition |
| Author(s) |
Christopher Jacob Williamson, Zack Tew, Malcolm Brady Williamson, James Brian Jordon, Paul Allison |
| On-Site Speaker (Planned) |
Christopher Jacob Williamson |
| Abstract Scope |
In this work, Additive Friction Stir Deposition (AFSD) process was investigated to deposit and repair structural titanium alloys, namely the near α alloy Ti-6Al-4V and the near ß alloy Ti-6Al-2Sn-4Zr-6Mo. Acceptable processing windows were developed for both alloys that allowed for fully dense depositions as well as creating a fully bonded repair in simulated damaged substrate grooves. Subsequent microstructural analysis was completed to evaluate the effects of the varying process parameters on the ß titanium microstructure in comparison to previous studies of AFSD of Ti64 to capture changes in the grain size, texture, and hardness from the wrought material. Following the selection of a parameter set for each alloy, the mechanical properties of repaired specimens were compared to wrought plate specimens and subsequent post-mortem fractography to elucidate changes in the failure mechanism and to prove the capability of AFSD repair for in-field use. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Titanium, Mechanical Properties |