Metallurgical and mechanical properties of Al–Cu joint by friction stir spot welding and modified friction stir clinching

Pingqiang Gao; Yan Zhang; Kush P. 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 P. Mehta^*

^*Corresponding author for this work

Design, Manufacturing And Engineering Management

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

32 Citations (Scopus)

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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, Al₄Cu_9, 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
DOIs	https://doi.org/10.1007/s12540-020-00759-w
Publication status	Published - 5 Jun 2020

Funding

The funding was provided by Science and Technology Planning Project of Shenzhen Municipality (CN). Acknowledgements Innovative Talents Promotion Planning Project of the Science and Technology Department of Shaan Xi (Grant No. 2018KJXX-078); Science and Technology Planning Project of State Administration for Market Regulation (Grant No. 2019MK069); Science and technology of Chongqing science committee Yulin in 2019.

Keywords

Al–Cu
dissimilar welding
friction stir spot welding
microstructural evolution
modified friction stir clinching
Zn interlayer

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10.1007/s12540-020-00759-w

Gao-etal-MMI2020-Metallurgical-mechanical-properties-Al–Cu-joint-friction-stir-spot-welding-modified-friction-stir-clinchingAccepted author manuscript, 3.17 MB

Cite this

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title = "Metallurgical and mechanical properties of Al–Cu joint by friction stir spot welding and modified friction stir clinching",

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, friction stir spot welding, microstructural evolution, modified friction stir clinching, Zn interlayer",

author = "Pingqiang Gao and Yan Zhang and Mehta, {Kush P.}",

note = "Funding Information: The funding was provided by Science and Technology Planning Project of Shenzhen Municipality (CN). Acknowledgements Funding Information: Innovative Talents Promotion Planning Project of the Science and Technology Department of Shaan Xi (Grant No. 2018KJXX-078); Science and Technology Planning Project of State Administration for Market Regulation (Grant No. 2019MK069); Science and technology of Chongqing science committee Yulin in 2019. Publisher Copyright: {\textcopyright} 2020, The Korean Institute of Metals and Materials. Gao, P., Zhang, Y. & Mehta, K.P. Metallurgical and Mechanical Properties of Al–Cu Joint by Friction Stir Spot Welding and Modified Friction Stir Clinching. Met. Mater. Int. 27, 3085–3094 (2021). https://doi.org/10.1007/s12540-020-00759-w ",

year = "2020",

month = jun,

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

language = "English",

volume = "27",

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journal = "Metals and Materials International ",

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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 P.

N1 - Funding Information: The funding was provided by Science and Technology Planning Project of Shenzhen Municipality (CN). Acknowledgements Funding Information: Innovative Talents Promotion Planning Project of the Science and Technology Department of Shaan Xi (Grant No. 2018KJXX-078); Science and Technology Planning Project of State Administration for Market Regulation (Grant No. 2019MK069); Science and technology of Chongqing science committee Yulin in 2019. Publisher Copyright: © 2020, The Korean Institute of Metals and Materials. Gao, P., Zhang, Y. & Mehta, K.P. Metallurgical and Mechanical Properties of Al–Cu Joint by Friction Stir Spot Welding and Modified Friction Stir Clinching. Met. Mater. Int. 27, 3085–3094 (2021). https://doi.org/10.1007/s12540-020-00759-w

PY - 2020/6/5

Y1 - 2020/6/5

N2 - 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 - 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 - friction stir spot welding

KW - microstructural evolution

KW - modified friction stir clinching

KW - Zn interlayer

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DO - 10.1007/s12540-020-00759-w

M3 - Letter

AN - SCOPUS:85086032560

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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