| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Friction Stir Welding and Processing XII
|
| Presentation Title |
Repair of Railroad Rail via Additive Friction Stir Deposition |
| Author(s) |
Michael Eff, Kathleen Chou, Chase Cox, Connor Saukas, Jason Carroll, Ryan Henderson |
| On-Site Speaker (Planned) |
Michael Eff |
| Abstract Scope |
Repair of rail is challenging using traditional joining methods. Any substantial flaw requires removal and replacement of an entire section of rail. Repairing results in a high residual tensile stress left in the rail, reducing its life and the allowable speed of a train on the rail. This work highlights the development of a repair technique on 1080 carbon steel rail using additive friction stir deposition (AFSD). A simulated flaw was machined out and new material was deposited to restore the rail to its proper geometry. The work examined the effect of various thermal cycles and processing parameters on the quality of the repair as well as the resultant properties of the HAZ via metallography, hardness, and subscale slow bend testing. Through metallurgical modeling coupled with a design of experiment approach, the repair was able to meet the performance criteria for rail repair on subscale specimens. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Iron and Steel, ICME |