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Interfacial bonding mechanism in Al/coated steel dissimilar refill friction stir spot welds

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dc.contributor.authorShen, Z.
dc.contributor.authorDing, Y.
dc.contributor.authorChen, J.
dc.contributor.authorAmirkhiz, B. Shalchi
dc.contributor.authorWen, John Z.
dc.contributor.authorFu, L.
dc.contributor.authorGerlich, Adrian P.
dc.date.accessioned2019-05-21T19:23:00Z
dc.date.available2019-05-21T19:23:00Z
dc.date.issued2019-06-01
dc.descriptionThe final publication is available at Elsevier via https://doi.org/10.1016/j.jmst.2019.01.001 © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.description.abstractDefect-free dissimilar Al/zinc coated steel and Al/AlSi coated steel welds were successfully fabricated by refill friction stir spot welding. However, Al alloy and uncoated steel could not be welded under the same welding condition. Al-Zn eutectic layer formed at the Al/zinc coated steel interface showed non-uniformity in thickness and nanoscale intermetallic (IMC) produced was discontinuous. The bonding formation between the Al-Zn layer and the surrounding materials was attributed to a liquid/solid reaction mechanism. Bonding formation at Al alloy and AlSi coated steel interface was attributed to a solid/solid reaction mechanism, as the joining process did not involve with melting of base metals or AlSi coating materials. Kissing bond formed at the weld boundary acted as a crack initiation and propagation site, and the present study showed that weld strength of Al 5754/AlSi coated steel was greatly influenced by properties of original IMC layer.en
dc.description.sponsorshipNatural Science and Engineering Council of Canadaen
dc.description.sponsorshipCanadian Foundation for Innovationen
dc.identifier.urihttps://doi.org/10.1016/j.jmst.2019.01.001
dc.identifier.urihttp://hdl.handle.net/10012/14668
dc.language.isoenen
dc.publisherElsevieren
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectrefill friction stir spot weldingen
dc.subjectal alloyen
dc.subjectsteelen
dc.subjectcoated materialsen
dc.subjectjoining mechanismen
dc.titleInterfacial bonding mechanism in Al/coated steel dissimilar refill friction stir spot weldsen
dc.typeArticleen
dcterms.bibliographicCitationShen, Z., Ding, Y., Chen, J., Amirkhiz, B. S., Wen, J.Z., Fu, L., Gerlich, A.P. (2019). Interfacial bonding mechanism in Al/coated steel dissimilar refill friction stir spot welds. Journal of Materials Science & Technology, 35(6), 1027-1038. https://doi.org/10.1016/j.jmst.2019.01.001en
uws.contributor.affiliation1Engineering, Faculty ofen
uws.contributor.affiliation2Mechanical and Mechatronics Engineeringen
uws.peerReviewStatusRevieweden
uws.scholarLevelPost-Doctorateen
uws.scholarLevelStaffen
uws.scholarLevelFacultyen
uws.typeOfResourceTexten
uws.typeOfResourceTexten

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