| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Large-scale Metallic Components
|
| Presentation Title |
Wire Arc Additive Manufacturing (WAAM) of Nano-Treated High Strength Aluminum Alloys |
| Author(s) |
Yitian Chi, Shuaihang Pan, Maximillian Liese, Narayanan Murali, Jingke Liu, Xiaochun Li |
| On-Site Speaker (Planned) |
Yitian Chi |
| Abstract Scope |
High-strength aluminum alloys such as AA7075 and AA2024 have drawn enormous attention from both industry and academia owing to their high specific strength and good fatigue resistance. Additive manufacturing (AM) can achieve significant weight savings with only minor compromises in strength if high-performance wrought aluminum alloys are used as feedstock. Despite the advantages in strength that aluminum alloys offer, they cannot be manufactured via fusion-based printing because of hot cracking and other solidification problems. Nano-treating is an emerging nanotech metallurgy method that uses a small fraction of nanoparticles to enhance alloy manufacturability and properties. This work successfully used wire-arc additive manufacturing to print nano-treated AA7075 and AA2024 components. The resulting parts were crack-free with exceptional grain morphology and superior mechanical properties. Due to the excellent size control capabilities with nanoparticles, a homogeneous distribution of small grains was maintained in all deposited layers even during the repeated thermal cycles. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Aluminum, Solidification |