Microstructure, mechanical and functional properties of refill friction stir spot welds on multilayered aluminum foils for battery application

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Microstructure, mechanical and functional properties of refill friction stir spot welds on multilayered aluminum foils for battery application. / Gera, Dennis; Fu, Banglong; Suhuddin, Uceu F.H.R. et al.
In: Journal of Materials Research and Technology, Vol. 13, 01.07.2021, p. 2272-2286.

Research output: Journal contributionsJournal articlesResearchpeer-review

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Gera D, Fu B, Suhuddin UFHR, Plaine A, Alcantara N, dos Santos JF et al. Microstructure, mechanical and functional properties of refill friction stir spot welds on multilayered aluminum foils for battery application. Journal of Materials Research and Technology. 2021 Jul 1;13:2272-2286. doi: 10.1016/j.jmrt.2021.06.017

Bibtex

@article{abd42b0703a14b7f9a254dd85b54299e,
title = "Microstructure, mechanical and functional properties of refill friction stir spot welds on multilayered aluminum foils for battery application",
abstract = "The production of batteries often involves the joining of multilayered foils to a conductive tab. In the present study, a solid state spot welding method, the refill friction stir spot welding (refill FSSW), was employed for welding multilayered commercially pure aluminum (CP–Al) foils to 2024-T3 Al alloy sheets (tab). Defect-free welds with high lap shear strength (LSS) are obtained. In the stirred zone (SZ), 2024 Al alloy is only found within the shoulder refill region, which is greatly refined due to dynamic recrystallization. Unlike overlap joints in thicker sheets, a thermo-mechanically affected zone also forms above the SZ in the probe refill region. “Stop-action” experiments have been conducted to describe joint formation. The presence of the 2024 Al alloy tabs resulted in significant changes to material follow behavior and the formation of microstructural zones not previously observed in conventional refill FSSW overlap welds in thicker sheets. Most welds failed in SZ pull-out mode during LSS test. The cracks initiate at the interface between the upper sheet and the first layer of the multilayered foils and then propagate upward and circumferentially outside the SZ. Welds of multilayered Al foils produced by refill FSSW show low contact resistance. The decomposition of electrochemically active materials in batteries can be avoided by maintaining a minimum distance from the spot-weld. The produced welds with flat appearance, high mechanical properties, and potential to meet industry requirements imply that refill FSSW is a promising welding technique for battery production.",
keywords = "Aluminum, Battery, Mechanical properties, Microstructure, Multilayered foils joining, Refill friction stir spot welding, Engineering",
author = "Dennis Gera and Banglong Fu and Suhuddin, {Uceu F.H.R.} and Athos Plaine and Nelson Alcantara and {dos Santos}, {Jorge F.} and Benjamin Klusemann",
note = "Funding Information: Dennis Gera would like to acknowledge the financial support received from CNPq ( National Council for Scientific and Technological Development — 134360/2019-2 ). This study was financed in part by the Coordena{\c c}{\~a}o de Aperfei{\c c}oamento de Pessoal de N{\'i}vel Superior - Brasil (CAPES) - Finance Code 001. The authors are grateful to Daniel Strerath (Institute of Metallic Biomaterials, Helmholtz-Zentrum Hereon) for the help in determining the chemical compositions of the base materials. Publisher Copyright: {\textcopyright} 2021 The Author(s)",
year = "2021",
month = jul,
day = "1",
doi = "10.1016/j.jmrt.2021.06.017",
language = "English",
volume = "13",
pages = "2272--2286",
journal = "Journal of Materials Research and Technology",
issn = "2238-7854",
publisher = "Elsevier Editora Ltda",

}

RIS

TY - JOUR

T1 - Microstructure, mechanical and functional properties of refill friction stir spot welds on multilayered aluminum foils for battery application

AU - Gera, Dennis

AU - Fu, Banglong

AU - Suhuddin, Uceu F.H.R.

AU - Plaine, Athos

AU - Alcantara, Nelson

AU - dos Santos, Jorge F.

AU - Klusemann, Benjamin

N1 - Funding Information: Dennis Gera would like to acknowledge the financial support received from CNPq ( National Council for Scientific and Technological Development — 134360/2019-2 ). This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) - Finance Code 001. The authors are grateful to Daniel Strerath (Institute of Metallic Biomaterials, Helmholtz-Zentrum Hereon) for the help in determining the chemical compositions of the base materials. Publisher Copyright: © 2021 The Author(s)

PY - 2021/7/1

Y1 - 2021/7/1

N2 - The production of batteries often involves the joining of multilayered foils to a conductive tab. In the present study, a solid state spot welding method, the refill friction stir spot welding (refill FSSW), was employed for welding multilayered commercially pure aluminum (CP–Al) foils to 2024-T3 Al alloy sheets (tab). Defect-free welds with high lap shear strength (LSS) are obtained. In the stirred zone (SZ), 2024 Al alloy is only found within the shoulder refill region, which is greatly refined due to dynamic recrystallization. Unlike overlap joints in thicker sheets, a thermo-mechanically affected zone also forms above the SZ in the probe refill region. “Stop-action” experiments have been conducted to describe joint formation. The presence of the 2024 Al alloy tabs resulted in significant changes to material follow behavior and the formation of microstructural zones not previously observed in conventional refill FSSW overlap welds in thicker sheets. Most welds failed in SZ pull-out mode during LSS test. The cracks initiate at the interface between the upper sheet and the first layer of the multilayered foils and then propagate upward and circumferentially outside the SZ. Welds of multilayered Al foils produced by refill FSSW show low contact resistance. The decomposition of electrochemically active materials in batteries can be avoided by maintaining a minimum distance from the spot-weld. The produced welds with flat appearance, high mechanical properties, and potential to meet industry requirements imply that refill FSSW is a promising welding technique for battery production.

AB - The production of batteries often involves the joining of multilayered foils to a conductive tab. In the present study, a solid state spot welding method, the refill friction stir spot welding (refill FSSW), was employed for welding multilayered commercially pure aluminum (CP–Al) foils to 2024-T3 Al alloy sheets (tab). Defect-free welds with high lap shear strength (LSS) are obtained. In the stirred zone (SZ), 2024 Al alloy is only found within the shoulder refill region, which is greatly refined due to dynamic recrystallization. Unlike overlap joints in thicker sheets, a thermo-mechanically affected zone also forms above the SZ in the probe refill region. “Stop-action” experiments have been conducted to describe joint formation. The presence of the 2024 Al alloy tabs resulted in significant changes to material follow behavior and the formation of microstructural zones not previously observed in conventional refill FSSW overlap welds in thicker sheets. Most welds failed in SZ pull-out mode during LSS test. The cracks initiate at the interface between the upper sheet and the first layer of the multilayered foils and then propagate upward and circumferentially outside the SZ. Welds of multilayered Al foils produced by refill FSSW show low contact resistance. The decomposition of electrochemically active materials in batteries can be avoided by maintaining a minimum distance from the spot-weld. The produced welds with flat appearance, high mechanical properties, and potential to meet industry requirements imply that refill FSSW is a promising welding technique for battery production.

KW - Aluminum

KW - Battery

KW - Mechanical properties

KW - Microstructure

KW - Multilayered foils joining

KW - Refill friction stir spot welding

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=85108504408&partnerID=8YFLogxK

U2 - 10.1016/j.jmrt.2021.06.017

DO - 10.1016/j.jmrt.2021.06.017

M3 - Journal articles

AN - SCOPUS:85108504408

VL - 13

SP - 2272

EP - 2286

JO - Journal of Materials Research and Technology

JF - Journal of Materials Research and Technology

SN - 2238-7854

ER -

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