Effect of silane coupling on the joint characteristics of friction lap joined Al alloy/CFRP

Nagatsuka, Kimiaki; Hironobu, Tanaka; Bolyu, Xiao; Tsuchiya, Atsuki; Nakata, Kohei

doi:10.1080/09507116.2017.1346819

Cited by 18 publications

(2 citation statements)

References 32 publications

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“…For example, hydrogen bonding formed between the positively charged hydrogen from polar functional groups of the polymer and negatively charged oxygen from metal oxidation layers. [ 24 ] Moreover, polymer without positively charged hydrogen such as PP [ 22 ] also could be joined with metal directly. This situation indicated that the interfacial reaction might occur between polymer and metal oxidation layers, and chemical bonding formed.…”

Section: Resultsmentioning

confidence: 99%

“…To gain a stronger joint, researchers utilized the surface pretreatment to improve the joint strength, such as laser‐processing pretreatment, [ 22 ] plasma electrolytic oxidation, [ 23 ] and silane coupling treatment, [ 24 ] etc. Laser‐processing pretreatment [ 22 ] could change accurately the surface structure including roughness, porosities, and other physical and chemical characteristics, and increase the interface mechanical interlocking of the dissimilar joints significantly, resulting in an increase in the joint strength substantially.…”

Section: Introductionmentioning

confidence: 99%

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Achieving a Strong Friction‐Lap Joint of Continuous Carbon‐Fiber‐Reinforced Plastic/Aluminum Alloy via a Surface Laser‐Processing Pretreatment

Jiang

Liu

et al. 2023

Adv Eng Mater

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It is difficult to achieve high‐strength joints of metals to carbon‐fiber‐reinforced plastics (CFRPs) with high contents of continuous fibers with the poor fluidity. Herein, a special designed laser‐processing pretreatment is conducted on the surface of 5052Al, and friction‐lap joining (FLJ) is employed to join pretreated 5052Al to the CFRP with 50%–55% fiber content. The maximal tensile shear force and strength reach 4.06 kN and 18.04 MPa, respectively, with an increment of 72% compared to the untreated sample. It is the first time to achieve the high‐strength joint of Al alloys to CFRPs with high contents of continuous fibers via FLJ. The joining area and adhesion work are quantified by theoretical calculations, and the residual stresses are visualized by finite‐element analysis. The laser‐processing pretreatment changes the plain Al alloy surface structure into the rough and porous structure, largely increasing the mechanical interlocking effect of the joint, and also changes the Al alloy surface wetting behavior and increases the adhesion work from 59.66 to 81.17 mN m−1. That largely changes the chemical reaction feature between the CFRP and Al alloy, resulting in their tight bonding. In addition, the residual stresses weaken, which further improve the tight bonding effect.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%