| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Stability, Phase Transformations, and Reactive Phase Formation in Electronic Materials XXI
|
| Presentation Title |
Room-temperature Electrochemical Healing of Difficult-to-weld Metallic Materials |
| Author(s) |
James H. Pikul |
| On-Site Speaker (Planned) |
James H. Pikul |
| Abstract Scope |
Healing structural metals has long required high temperature techniques that are energy expensive and result in cracking in many nickel and aluminum alloys. We show that we can overcome this by repairing metal at room temperature using selective electrochemical deposition. We combine theory and experiments to predict the fracture mode of healed samples and the possibility of achieving 100% recovery of tensile strength. The insights of this model allow us to demonstrate the healing of hard-to-weld alloys, aluminum 2024 and aluminum 7075, with 85% and 100% recovery of tensile strength respectively. This design strategy also allows us to demonstrate full recovery of tensile strength in the 3D printed cellular structures. This work establishes a general framework for the room-temperature electrochemical healing of a variety of structural metallic materials. It opens the possibility of repairing metals, that are otherwise difficult to weld, in structures and robots to extend their operational life and to efficiently employ resources in energy-constrained systems and remote environments. |
| Proceedings Inclusion? |
Planned: |