A novel strategy for the reliable joining of Ti6Al4V/2A12-T4 dissimilar alloys via friction melt-bonded spot welding

•Friction melt-bonded spot welding is a suitable method to weld lap joints of dissimilar Ti/Al alloys.•The tensile shear load reaches 18.2 kN.•A nanoscale Al3Ti forms at the Ti/Al interface.•The temperature is approximately 570 °C at the Ti/Al interface during welding. This study used an unconventio...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Materials letters 2019-10, Vol.253, p.306-309
Hauptverfasser:	Chen, Yuhua, Deng, Huaibo, Liu, Hao, Zhang, Timing, Li, Shuhan, Wang, Shanlin, Chen, Chao
Format:	Artikel
Sprache:	eng
Schlagworte:	Aluminum alloys Aluminum base alloys Dissimilar material joining Friction melt-bonded spot welding Interfaces Materials science Mechanical properties Microstructure Spot welding Titanium alloys Titanium base alloys
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	•Friction melt-bonded spot welding is a suitable method to weld lap joints of dissimilar Ti/Al alloys.•The tensile shear load reaches 18.2 kN.•A nanoscale Al3Ti forms at the Ti/Al interface.•The temperature is approximately 570 °C at the Ti/Al interface during welding. This study used an unconventional friction melt-bonded spot welding (FMSW) to improve the mechanical performance of dissimilar Ti/Al joints. The temperature, microstructure, and mechanical properties were investigated. Results showed that FMSW was a suitable method to form nanoscale Al3Ti at Ti/Al interface. The maximum tensile shear load of joints reached 18.2 kN.
ISSN:	0167-577X 1873-4979
DOI:	10.1016/j.matlet.2019.06.089