The role of corrosion/oxidation in the failure of aluminum adhesive joints under hot, wet conditions

Underhill, P. R.; DuQuesnay, D.L.

doi:10.1016/j.ijadhadh.2005.02.005

Cited by 15 publications

(1 citation statement)

References 19 publications

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“…Liu et al [4] and Mohsen et al [5] investigated the durability of carbon fiber-reinforced plastic joints in hygrothermal environments, and reported that the strength and failure modes were both affected by moisture and temperature. Numerous studies have reported that the interaction of temperature and moisture can accelerate joint ageing rates [6][7][8], and that strength reduction is primarily related to moisture absorption, which decreases adhesive performance and increase substrate corrosion [9][10][11][12]. Qin et al [13] investigated temperatures in the cohesive zone mode via experimental study and reported that the effects of high temperatures are more evident than those of low temperatures on the mechanical properties of bonded joints.…”

Section: Introductionmentioning

confidence: 99%

Surface Treatment for Improving Durability of Aluminum-Lithium Adhesive-Bonded Joints under Hot-Humid Exposure

Huang

et al. 2019

Coatings

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The performance of adhesive-bonded joints, which are being increasingly used in the aerospace and automotive industries, under hot-humid conditions remains largely unknown. The effect of surface treatments on the strength durability of aluminum-lithium (Al-Li) alloy adhesive-bonded joints under hot-humid exposure was investigated. Varied surface characteristics were achieved by different mechanical and chemical treatments; combined mechanical and phosphoric acid anodization (PAA) treatments were also used. The adhesive-bonded joints were then exposed to a hot-humid environment. The surface morphology, strength degradation, failure modes, and corrosion resistance of the substrates were analyzed. The results indicated that the combined PAA/mechanical method improved the joint durability under hot-humid exposure. The treated surface, with a roughness of 2.85 μm, exhibited the best durability, losing only 6% of strength after exposure; the failure mode remained cohesive-failure dominant. The durability enhancement was attributed to the porous and moderate rough surface characteristics, which protected the substrate from corrosion and decreased the rate of moisture diffusion from the bonding interface, thereby reducing the degradation of the bonding interface and improving the durability of the joint.

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Section: Introductionmentioning

confidence: 99%

Surface Treatment for Improving Durability of Aluminum-Lithium Adhesive-Bonded Joints under Hot-Humid Exposure

Huang

et al. 2019

Coatings

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Effect of hot-humid exposure on static strength of adhesive-bonded aluminum alloys

et al. 2015

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The effect of hot-humid exposure (i.e., 40 C and 98% R.H.) on the quasi-static strength of the adhesive-bonded aluminum alloys was studied. Test results show that the hot-humid exposure leads to the significant decrease in the joint strength and the change of the failure mode from a mixed cohesive and adhesive failure with cohesive failure being dominant to adhesive failure being dominant. Careful analyses of the results reveal that the physical bond is likely responsible for the bond adhesion between L adhesive and aluminum substrates. The reduction in joint strength and the change of the failure mode resulted from the degradation in bond adhesion, which was primarily attributed to the corrosion of aluminum substrate. In addition, the elevated temperature exposure significantly accelerated the corrosion reaction of aluminum, which accelerated the degradation in joint strength.

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Adhesive strength of flip chip packages

Chiang

Chan

Ralph

et al. 2008

International Journal of Adhesion and Adhesives

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The role of corrosion/oxidation in the failure of aluminum adhesive joints under hot, wet conditions

Cited by 15 publications

References 19 publications

Surface Treatment for Improving Durability of Aluminum-Lithium Adhesive-Bonded Joints under Hot-Humid Exposure

Surface Treatment for Improving Durability of Aluminum-Lithium Adhesive-Bonded Joints under Hot-Humid Exposure

Effect of hot-humid exposure on static strength of adhesive-bonded aluminum alloys

Adhesive strength of flip chip packages

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