About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Stability, Phase Transformations, and Reactive Phase Formation in Electronic Materials XXV
|
| Presentation Title |
Energy-Dependent Microstructural Evolution and Corresponding Mechanical and Electrical Properties in Ultrasonic Spot-Welded Ni/Al Lamellar Composite for Battery Tab Applications |
| Author(s) |
Yan-Lin Zhu, Kuan-Chieh Hu, Jhong-Ren Huang, Jhe-Yu Lin |
| On-Site Speaker (Planned) |
Yan-Lin Zhu |
| Abstract Scope |
This study investigated the effect of varying ultrasonic spot welding (USW) energy on microstructural evolution, interfacial bonding characteristics, electrical resistance, and phase transformation in Ni/Al/Ni/Al/Ni multilayered structures. Results demonstrate that maximum bonding strength reaches approximately 800 N at interfacial temperatures of 471°C. Heat transfer variations among Ni/Al layers created temperature gradients between the upper and lower layers. Slip motion caused a sequential bonding progression, with the upper layers achieving complete bonding earlier, while the lower layers remained under friction and did not achieve complete bonding. The energy-dependent welding process had a significant influence on the development of interfacial microstructure and electrical properties. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Electronic Materials, Joining, Phase Transformations |