| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
2024 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-20: Improving the Joint Strength of Ultrasonic Welded Mg/Al Joints by Insetting a Third Element Foil |
| Author(s) |
Shunta Tsunemori, Yusuke Matsuoka, Mingzhe Bian, Yuhki Tsukada, Toshiyuki Koyama, Yasumasa Chino |
| On-Site Speaker (Planned) |
Mingzhe Bian |
| Abstract Scope |
Joining of lightweight Mg and Al alloys is increasingly important for expanding their applications as it allows combining the advantages of each material. Nevertheless, due to the large differences in physical and chemical properties between Mg and Al, producing high performance Mg/Al joints has been proven difficult due to the formation of thick and brittle intermetallic compound (IMC) layers: Mg17Al12 layer on the Mg alloy side and Mg2Al3 layer on the Al alloy side. The purpose of this work is thus to improve the joint strength of ultrasonic welded Mg/Al joints by inserting a third element foil. Ag and Cu foils were found to improve the joint strength, while Ti, Ni and Zr foils were confirmed to decrease the joint strength. The interfacial microstructures were observed by secondary electron microscopy and transmission electron microscopy to understand the reasons for the variation in the joint strength of ultrasonic welded Mg/interlayer/Al joints. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Magnesium, Aluminum, Joining |