| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Influence of Deformability of Interlayer Metals on Ultrasonic Spot Welding of Commercially Pure Titanium Sheets With Heterogeneous Interface. |
| Author(s) |
Jheyu Lin, Kuan-Chieh Hu, Tung-Ling Hsieh |
| On-Site Speaker (Planned) |
Jheyu Lin |
| Abstract Scope |
This study investigated the feasibility of using interlayer metals for joining pure Ti sheets using ultrasonic welding (USW). Regarding USW of Ti without interlayers. It is found that joining Ti without interlayers exhibited difficulty owing to low deformability and fracture near the Ti/Ti interface. Alternatively, pure Al, Fe, and Ni foils were utilized to examine their effect on the weldability of Ti sheets. It is found that Al interlayers exhibit an improved strength evolution at a low energy consumption (fracture load over 1.7 kN with welding energy of 0.6 kJ).
Meanwhile, harder Fe required higher energy (1.2kJ) to facilitate beta-Ti formation at the Ti/Fe/Ti interfaces. And hardest Ni foil revealed a lower strength increase because of the difficulty of inducing plastic flow. The above results suggest deformability of interlayer metals is a crucial factor for hetero-structure joint design. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Joining, Titanium, Composites |