| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
2025 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-59: Electrochemical Corrosion Properties and Fatigue Life of Al 7075 Parts Prepared by Additive Friction Stir Deposition |
| Author(s) |
Ehsan Bagheri, Noushin Adibi, Peyton Wilson, Michael Khonsari, Shengmin Guo |
| On-Site Speaker (Planned) |
Ehsan Bagheri |
| Abstract Scope |
Additive manufacturing of aluminum alloys using conventional fusion-based techniques faces significant challenges, including solidification defects such as porosity, shrinkage, and thermal cracking. To address these issues, additive friction stir deposition (AFSD) has emerged as a solid-state technique and has been successfully applied to various alloys. Al 7075 is one of the hardest and strongest aluminum alloys which brings additional processing challenges. In this study, Al 7075 parts were fabricated using AFSD with a deposition rate twice as high as those reported in the literature. The electrochemical corrosion properties of the depositions were evaluated for the top and bottom layers and compared to the feedstock. Additionally, the bending fatigue life of these layers was assessed using a displacement-controlled fatigue tester. The results indicated that corrosion resistance and fatigue life decreased after deposition, with the bottom layers experiencing a more significant reduction in both properties than the top layers. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Additive Manufacturing, Aluminum, Mechanical Properties |