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Role of surface structures on long term stability of adhesive joints between Ti-15V-3Cr-3Sn-3Al and polyether-ether-ketone

Löbbecke, Miriam und Bayerbasi, Tolga Johannes und Bartsch, Marion und Haubrich, Jan (2023) Role of surface structures on long term stability of adhesive joints between Ti-15V-3Cr-3Sn-3Al and polyether-ether-ketone. International Journal of Adhesion and Adhesives. Elsevier. doi: 10.1016/j.ijadhadh.2022.103282. ISSN 0143-7496.

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Offizielle URL: https://www.sciencedirect.com/science/article/abs/pii/S0143749622001981

Kurzfassung

Adhesive bonding of similar and dissimilar materials is a key enabler for lightweight design in the automobile as well as aerospace industries. The strength and durability of adhesive metal-polymer joints in humid atmospheres depends strongly on surface pretreatments. Different pretreatments of Ti-15V-3Cr-3Sn-3Al (Ti15-3) for joining to polyether-ether-ketone (PEEK) were investigated in order to optimize the joint properties and elucidate underlying bonding mechanisms. Micro- and nanostructured surfaces were created with laser and chemical pretreatments and characterized with microscopy and X-ray photoelectron spectroscopy (XPS). The mechanical performance of the joints was analyzed with single lap shear tests in both the initial condition and after hydrothermal aging. Without significant structuring only physico-chemical interactions were present that accounted for strengths of up to 45 MPa. In the presence of micro- or nanostructures that add interlocking possibilities to the bonding, a maximum strength of 74 MPa was obtained. Hydrothermal aging resulted in poor residual strengths for samples without structuring, showing that humidity strongly degraded physico-chemical bonding. High aging resistance was particularly reached for laser pretreated specimens with an open-porous nanostructure. By comparing the different surfaces, it was found that (i) nanostructuring has a bigger impact on the aging resistance than microstructuring, and (ii) aging can be assigned mainly to weakening of physico-chemical bonding. Therefore, it can be deduced that nanomechanical interlocking is a key for producing long-term stable Ti15-3/PEEK joints.

elib-URL des Eintrags:https://elib.dlr.de/189590/
Dokumentart:Zeitschriftenbeitrag
Titel:Role of surface structures on long term stability of adhesive joints between Ti-15V-3Cr-3Sn-3Al and polyether-ether-ketone
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Löbbecke, MiriamMiriam.Loebbecke (at) dlr.dehttps://orcid.org/0000-0001-7838-6204NICHT SPEZIFIZIERT
Bayerbasi, Tolga JohannesInstitut für Werkstoff-Forschung/Hochschule AachenNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Bartsch, MarionMarion.Bartsch (at) dlr.dehttps://orcid.org/0000-0002-3952-2928NICHT SPEZIFIZIERT
Haubrich, JanJan.Haubrich (at) dlr.dehttps://orcid.org/0000-0002-5748-2755NICHT SPEZIFIZIERT
Datum:Januar 2023
Erschienen in:International Journal of Adhesion and Adhesives
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
DOI:10.1016/j.ijadhadh.2022.103282
Verlag:Elsevier
ISSN:0143-7496
Status:veröffentlicht
Stichwörter:surface treatment, surface roughness/morphology, hybrid joints, aging, bonding mechanisms
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Komponenten und Systeme
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L CS - Komponenten und Systeme
DLR - Teilgebiet (Projekt, Vorhaben):L - Strukturwerkstoffe und Bauweisen
Standort: Köln-Porz
Institute & Einrichtungen:Institut für Werkstoff-Forschung > Metallische Strukturen und hybride Werkstoffsysteme
Institut für Werkstoff-Forschung > Experimentelle und numerische Methoden
Hinterlegt von: Löbbecke, Miriam
Hinterlegt am:16 Jan 2023 09:04
Letzte Änderung:16 Jan 2023 09:04

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