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Friction Stir Spot Butt Welding of Dissimilar S45C Steel and 6061-T6 Aluminum Alloy

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Abstract
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.
Author(s)
고곤장승위몬달 무나릭바삭 소우미야브라타홍성태심희찬
Issued Date
2021
Type
Article
Keyword
friction stir spot butt weldingaluminumalloysteeldissimilar jointintermetallic compounds
DOI
10.3390/met11081252
URI
https://oak.ulsan.ac.kr/handle/2021.oak/8883
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_doaj_primary_oai_doaj_org_article_15a43c96e86445ce90cdabe0f7024de3&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Friction%20Stir%20Spot%20Butt%20Welding%20of%20Dissimilar%20S45C%20Steel%20and%206061-T6%20Aluminum%20Alloy&offset=0&pcAvailability=true
Publisher
METALS
Location
스위스
Language
영어
ISSN
2075-4701
Citation Volume
11
Citation Number
8
Citation Start Page
1252
Citation End Page
1252
Appears in Collections:
Engineering > Mechanical and Automotive Engineering
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