Variable-parameter NiTi ultrasonic spot welding with Cu interlayer

S. S. Ao, W. Zhang*, C. J. Li, J. P. Oliveira, Z. Zeng, Z. Luo

*Bijbehorende auteur voor dit werk

Onderzoeksoutput: ArticleAcademicpeer review

7 Citaten (Scopus)
49 Downloads (Pure)


NiTi thin sheets were ultrasonic spot welded with a Cu interlayer, where different welding vibration amplitudes were applied to study the influence on the surface and interface microstructural characteristics, phase transformation behavior and mechanical response of the joints, which aimed to enhance the joint performance by proper optimization of the process parameters. An excellent bonding interface was achieved when an optimized vibration amplitude was applied, with a recrystallized microstructure formed in the Cu foil side near the bonding interface, which helped to improve the mechanical performance of the joints. Joints made with vibration amplitude of 55 mu m had an improved strength compared to the NiTi base material.

Originele taal-2English
Pagina's (van-tot)599-607
Aantal pagina's9
TijdschriftMaterials and Manufacturing Processes
Nummer van het tijdschrift5
StatusPublished - 4-apr.-2021

Citeer dit