About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmental Degradation of Additively Manufactured Materials
|
| Presentation Title |
Influence of active cooling on the corrosion behavior of a multi-layer AA7050 lubricant free build processed by TR-AFSD |
| Author(s) |
Alondra Marie Torres, Trevor Hickok, Gregory Kubacki , Brian Jordon , Paul Allison |
| On-Site Speaker (Planned) |
Alondra Marie Torres |
| Abstract Scope |
This study investigates the corrosion behavior of a lubricant-free AA7050 multi-layer build fabricated using Twin Rod Additive Friction Stir Deposition (TR-AFSD). A 50-layer circular build was deposited onto an AA7050-T7451 substrate that was actively cooled by a chiller plate and a direct forced air vortex, to examine the effect of rapid heat dissipation on corrosion susceptibility. Electrochemical and immersion tests in 3.5 wt% sodium chloride solution were conducted at three different layer heights, with wrought AA7050-T7451 used for comparison. The results revealed more active electrochemical parameters and higher corrosion current density in the AFSD build compared to the wrought AA7050-T7451. Within the build, the bottom and middle sections exhibited similar corrosion susceptibility, whereas the top section showed the most active electrochemical parameters due to the reduced heat input. These findings suggest that active cooling enhances the corrosion resistance of AA7050 multi-layer builds produced by AFSD to a certain extent. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Environmental Effects, Aluminum |