Effect of oxidation and surface roughness on the shear strength of single-lap-joint adhesively bonded metal specimens by tension loading

Khan, M. H.; Gali, O.A.; Edrisy, Afsaneh; Riahi, A.R.

doi:10.1186/s40563-016-0077-1

Cited by 18 publications

(7 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Highest polar contributions (c d ¼ 16 mJ/m 2 ) are obtained when the DLC coating has low H-content. This rather moderate surface energy lies within the range of that known for metallic surfaces [17]. Monden et al [18] reported a 50% improvement in interfacial fracture toughness for a DLC coated steel, bonded to epoxy based CFRP.…”

Section: Introductionsupporting

confidence: 57%

Treatment of additively manufactured AlSi10Mg surfaces for improved bonding with fiber reinforced composites for sandwich applications

Zoesmar

Fuchs

Taha

2021

Jnl of Sandwich Structures & Materials

View full text Add to dashboard Cite

The performance of low weight, high stiff multi-materials relies on the interfacial bond quality between the adherends. This study analyses the effect of surface roughness, organosilane treatment and coating with diamond like carbon on the adhesion strength between carbon fiber reinforced composites and an additively manufactured (AM) AlSi10Mg counterpart. Extending applications to sandwich structures, both, bulk and honeycomb structured counterparts were considered. Double-Lap Shear specimens were fabricated in a co-curing process, and further investigated regarding the bond efficiency. Results were compared to the state-of-the-art joints applying an adhesive film layer. It was observed that surface roughness is not pivotal when using such adhesive film. In contrast, higher surface roughness generally tends to promote adhesion strength by promoting mechanical interlocking and increasing the available bond area. Further coating with organosilanes and diamond like carbon increases the surface energy and reduces the contact angle thus improving surface wettability by the matrix resin. In consequence, an improvement of up to 30% in adhesion strength was observed in case of coating the metallic surface with diamond like carbon. Prior surface polishing of the additively manufactured parts does not significantly affect the bond quality and is therefore not recommended.

show abstract

Section: Introductionsupporting

confidence: 57%

Treatment of additively manufactured AlSi10Mg surfaces for improved bonding with fiber reinforced composites for sandwich applications

Zoesmar

Fuchs

Taha

2021

Jnl of Sandwich Structures & Materials

View full text Add to dashboard Cite

show abstract

“…Single-lap joint (SLJ) shear tests were performed to analyze the effect of the different surface treatments on the initial bond strength between the adhesive and the pre-treated steel. The SLJ shear test is a widely used industrial test [25][26][27], and the current geometry is based on the standard geometry defined in ASTM-standard D1002. In order to assure the final geometry of the joint specimens, a mould was used to align the specimens, control the bondline thickness and provide uniform pressure across the joints.…”

Section: Single-lap Joint (Slj) Shear Testmentioning

confidence: 99%

Effect of surface roughness and chemistry on the adhesion and durability of a steel-epoxy adhesive interface

Dam

Abrahami

Yilmaz

et al. 2020

International Journal of Adhesion and Adhesives

View full text Add to dashboard Cite

This work focuses on the effect of surface roughness, morphology and chemistry on the initial adhesion strength and corrosive de-adhesion properties of adhesive bonds. Steel surfaces are subjected to different surface pre-treatment methods such as mechanical abrasion, grit blasting, zirconium conversion treatment and silane treatment. Single-lap joint tests were performed to assess the initial bond strengths. Static wedge tests were used to study the loaded environmental ageing of joints and unloaded delamination of adhesive films from the steel surface was studied by means of scanning Kelvin probe (SKP). Experimental results indicate surface roughening plays an important role on the initial adhesion but a minor role in the durability of the bonded steel. The improved initial adhesion is mainly attributed to the increased interfacial bond area at higher surface roughness whereas complex morphology shows a more profound effect on both the initial adhesion and the durability of the interfacial adhesion. In the absence of complex texture, surfaces with altered chemistry by zirconium-or silane treatment exhibit a significant increase of the initial bonding strength and assessment of the interfacial delamination kinetics by SKP reveal that despite the absence of any surface topography, these surfaces prove to have higher resistance to delamination.

show abstract

“…Highest polar contributions (g p = 20 mJ m -2 ) are obtained when the DLC coating has low H-content. This rather moderate surface energy compares to that of real metal surfaces [23].…”

Section: Introductionmentioning

confidence: 74%

Carbon and Silane‐based Coatings for Improved Bonding in Hybrid Metal‐Composite Applications

Zoesmar

Birkle

Fuchs

et al. 2022

Chemie Ingenieur Technik

View full text Add to dashboard Cite

Interfacial bonding in multi-material structures is crucial for component performance. The influence of organosilane and Diamond-Like Carbon coatings were investigated for improved bond strength of additively manufactured AlSi10Mg, CuCr1Zr and Ti6Al4V with carbon fiber reinforced polymer composite. Treated surfaces were evaluated by surface energy, contact angle, film adhesion and thickness measurements, SEM-EDX analysis and double-lap-shear tests. Coating improved the bond strength by around 20 % in case of AlSi10Mg and CuCr1Zr, whereas treatment did not show any significant effect for Ti6Al4V.

show abstract

Effect of oxidation and surface roughness on the shear strength of single-lap-joint adhesively bonded metal specimens by tension loading

Cited by 18 publications

References 27 publications

Treatment of additively manufactured AlSi10Mg surfaces for improved bonding with fiber reinforced composites for sandwich applications

Treatment of additively manufactured AlSi10Mg surfaces for improved bonding with fiber reinforced composites for sandwich applications

Effect of surface roughness and chemistry on the adhesion and durability of a steel-epoxy adhesive interface

Carbon and Silane‐based Coatings for Improved Bonding in Hybrid Metal‐Composite Applications

Contact Info

Product

Resources

About