Metallurgical and Mechanical Properties of Al–Cu Joint by Friction Stir Spot Welding and Modified Friction Stir Clinching

Pingqiang  Gao; Yan Zhang; Kush Mehta

doi:10.1007/s12540-020-00759-w

Metallurgical and Mechanical Properties of Al–Cu Joint by Friction Stir Spot Welding and Modified Friction Stir Clinching

Pingqiang Gao, Yan Zhang, Kush Mehta^*

^*Corresponding author for this work

Department of Energy and Mechanical Engineering

Research output: Contribution to journal › Letter › Scientific › peer-review

31 Citations (Scopus)

172 Downloads (Pure)

Abstract

Abstract: Dissimilar joints of AA5083 and pure Cu joint are successfully produced and compared by friction stir spot welding and modified friction stir clinching with intermediate layer of Zn interlayer for the first time. Self-reacting behavior of Zn is observed to obtain sound welds resulted from intermixing in stir zone (in FSSW), refilled zone (in MFSC) and brazed zone (in both FSSW and MFSC). MFSC is used to fill the cavity of keyhole that in turn increased 40% strength of dissimilar Cu–Al joints. Presence of lamellar eutectics in brazed zone and intermetallic compounds such as Al2Cu, Al4Cu9, CuZn5 and Cu4Zn in weld zone are confirmed in Cu–Al MFSC joints. Graphic Abstract: [Figure not available: see fulltext.]

Original language	English
Pages (from-to)	3085-3094
Number of pages	10
Journal	METALS AND MATERIALS INTERNATIONAL
Volume	27
Issue number	8
Early online date	5 Jun 2020
DOIs	https://doi.org/10.1007/s12540-020-00759-w
Publication status	Published - Aug 2021
MoE publication type	B1 Non-refereed journal articles

Keywords

Al–Cu
Dissimilar welding
Microstructural evolution
Modified friction stir clinching
Zn interlayer

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10.1007/s12540-020-00759-w

ENG_Gao_et_al_Metallurgical_and_mechanical_properties_Metals_and_Materials_InternationalAccepted author manuscript, 3.22 MB

https://link.springer.com/article/10.1007/s12540-020-00759-w

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title = "Metallurgical and Mechanical Properties of Al–Cu Joint by Friction Stir Spot Welding and Modified Friction Stir Clinching",

abstract = "Abstract: Dissimilar joints of AA5083 and pure Cu joint are successfully produced and compared by friction stir spot welding and modified friction stir clinching with intermediate layer of Zn interlayer for the first time. Self-reacting behavior of Zn is observed to obtain sound welds resulted from intermixing in stir zone (in FSSW), refilled zone (in MFSC) and brazed zone (in both FSSW and MFSC). MFSC is used to fill the cavity of keyhole that in turn increased 40% strength of dissimilar Cu–Al joints. Presence of lamellar eutectics in brazed zone and intermetallic compounds such as Al2Cu, Al4Cu9, CuZn5 and Cu4Zn in weld zone are confirmed in Cu–Al MFSC joints. Graphic Abstract: [Figure not available: see fulltext.]",

keywords = "Al–Cu, Dissimilar welding, Microstructural evolution, Modified friction stir clinching, Zn interlayer",

author = "Pingqiang Gao and Yan Zhang and Kush Mehta",

year = "2021",

month = aug,

doi = "10.1007/s12540-020-00759-w",

language = "English",

volume = "27",

pages = "3085--3094",

journal = "METALS AND MATERIALS INTERNATIONAL",

issn = "1598-9623",

publisher = "Korean Institute of Metals and Materials",

number = "8",

}

TY - JOUR

T1 - Metallurgical and Mechanical Properties of Al–Cu Joint by Friction Stir Spot Welding and Modified Friction Stir Clinching

AU - Gao, Pingqiang

AU - Zhang, Yan

AU - Mehta, Kush

PY - 2021/8

Y1 - 2021/8

N2 - Abstract: Dissimilar joints of AA5083 and pure Cu joint are successfully produced and compared by friction stir spot welding and modified friction stir clinching with intermediate layer of Zn interlayer for the first time. Self-reacting behavior of Zn is observed to obtain sound welds resulted from intermixing in stir zone (in FSSW), refilled zone (in MFSC) and brazed zone (in both FSSW and MFSC). MFSC is used to fill the cavity of keyhole that in turn increased 40% strength of dissimilar Cu–Al joints. Presence of lamellar eutectics in brazed zone and intermetallic compounds such as Al2Cu, Al4Cu9, CuZn5 and Cu4Zn in weld zone are confirmed in Cu–Al MFSC joints. Graphic Abstract: [Figure not available: see fulltext.]

AB - Abstract: Dissimilar joints of AA5083 and pure Cu joint are successfully produced and compared by friction stir spot welding and modified friction stir clinching with intermediate layer of Zn interlayer for the first time. Self-reacting behavior of Zn is observed to obtain sound welds resulted from intermixing in stir zone (in FSSW), refilled zone (in MFSC) and brazed zone (in both FSSW and MFSC). MFSC is used to fill the cavity of keyhole that in turn increased 40% strength of dissimilar Cu–Al joints. Presence of lamellar eutectics in brazed zone and intermetallic compounds such as Al2Cu, Al4Cu9, CuZn5 and Cu4Zn in weld zone are confirmed in Cu–Al MFSC joints. Graphic Abstract: [Figure not available: see fulltext.]

KW - Al–Cu

KW - Dissimilar welding

KW - Microstructural evolution

KW - Modified friction stir clinching

KW - Zn interlayer

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U2 - 10.1007/s12540-020-00759-w

DO - 10.1007/s12540-020-00759-w

M3 - Letter

SN - 1598-9623

VL - 27

SP - 3085

EP - 3094

JO - METALS AND MATERIALS INTERNATIONAL

JF - METALS AND MATERIALS INTERNATIONAL

IS - 8

ER -

Metallurgical and Mechanical Properties of Al–Cu Joint by Friction Stir Spot Welding and Modified Friction Stir Clinching

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Keywords

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