Journal
METALS
Volume 11, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/met11081252
Keywords
friction stir spot butt welding; aluminum alloy; steel; dissimilar joint; intermetallic compounds
Funding
- University of Ulsan
Ask authors/readers for more resources
Friction stir spot welding of dissimilar S45C steel and 6061-T6 aluminum alloy in a butt configuration was experimentally investigated, showing that increasing the tool rotational speed can improve the thickness of the IMC layer and tensile strength. The performance of the joint is closely related to the IMCs at the joint interface, as shown by tensile tests and microstructural analysis.
Friction stir spot welding (FSSW) of dissimilar S45C steel and 6061-T6 aluminum alloy in a butt configuration is experimentally investigated. Butt spot welding is performed using a convex scrolled shoulder tool at different tool rotational speeds. FSSW butt joints are successfully fabricated by offsetting the tool to the steel side. The microstructures of the joints fabricated at three different tool rotational speeds are characterized using scanning electron microscopy and energy dispersive spectrometry. Microstructural analysis shows the presence of intermetallic compounds (IMCs) along the steel/aluminum interface. The thickness of the IMC layer and the tensile strength of the joint increase with increasing the tool rotational speed. The results of tensile tests and microstructural analysis show that the joint performance is closely related to the IMCs at the joint interface.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available