Improving Adhesive Bonding of AlMg3 Alloy
Author Information
Author(s): Fan Changfeng, Yang Bo, Wang Xue, Zhan Xianghua, Yin Xiaoli, Shi Jianmin, Liu Yancong, Dilger Klaus, Brycki Bogumil E.
Primary Institution: Shandong Institute of Petrochemical and Chemical Technology
Hypothesis
The study investigates the effect of varying chemical treatment periods on the adhesive bonding characteristics of AlMg3 alloy.
Conclusion
The H2O2-treated samples exhibited the highest initial bond strength of 22.5 MPa and maintained a strong bond even after aging under extreme conditions.
Supporting Evidence
- The H2O2-treated samples showed a decrease of only 10% in bond strength after aging.
- Single lap-shear tests indicated that the H2O2 treatment resulted in cohesive failure, suggesting strong adhesion.
- Electrochemical measurements confirmed the high corrosion resistance of the treated surfaces.
Takeaway
This study shows that treating aluminum surfaces with hydrogen peroxide can make them stick better and last longer, even in tough conditions.
Methodology
The study involved chemical treatments of AlMg3 alloy followed by single lap-shear tests to evaluate bond strength and durability.
Limitations
The sol-gel coatings showed poor adhesion, indicating that not all treatments were effective.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website