Please use this identifier to cite or link to this item: doi:10.22028/D291-37950
Title: Solid State Joining of a Cold Rolled Zr-Based Bulk Metallic Glass to a Wrought Aluminum Alloy by Power Ultrasonics
Author(s): Becker, Michael
Kuball, Alexander
Ghavimi, Amirhossein
Adam, Bastian
Busch, Ralf
Gallino, Isabella
Balle, Frank
Language: English
Title: Materials
Volume: 15
Issue: 21
Publisher/Platform: MDPI
Year of Publication: 2022
Free key words: ultrasonic metal welding
aluminum alloy sheet
zirconium-based bulk metallic glass
amorphous/crystalline joint
DDC notations: 500 Science
Publikation type: Journal Article
Abstract: Ultrasonic metal welding (UMW) enables joining in the solid state at relative low temperatures with short cycle times. This technique is of particular interest for joining metallic glasses to each other or to other materials, because crystallization of the amorphous structure can be prevented due to the low thermal loading and the rapidity of the process. In this work, UMW is applied to join one 1 mm thick sheet of a commercial wrought aluminum alloy (AA5754) and one 0.4 mm thick strip of a commercial Zr-based bulk metallic glass (AMZ4). The introduced heat of the welding process is detected with thermocouples and thermal imaging. To investigate the strength of the joint and the influence on the microstructure, mechanical tensile tests are carried out in combination with scanning electron microscopy and differential scanning calorimetry. The results show that ultrasonic metal welding is a suitable technique to join amorphous bulk metallic glasses to crystalline aluminum alloys. The metallic glass component retains its amorphous structure in the joint, and the joint strength is higher than the strength of the Al sheet. These findings will help to develop future applications of BMG-based multi-material components, including medical tools.
DOI of the first publication: 10.3390/ma15217673
Link to this record: urn:nbn:de:bsz:291--ds-379504
ISSN: 1996-1944
Date of registration: 11-Nov-2022
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Materialwissenschaft und Werkstofftechnik
Professorship: NT - Prof. Dr. Ralf Busch
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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