Abstract

Aluminum alloys are advantageous light metals in many respects. In the use of these alloys in the ship, aviation and automotive industries, bonding applications rather than welded joints or mechanical connections are preferred. Improving adhesion properties with various surface treatments applied to aluminum alloys is an important issue. Adhesive type, front surface treatments and surface activation techniques control adhesion strength. In this study, the effect of plasma surface treatment technology on adhesion strength was examined in detail. The water drop wetting ability of the alloys were examined, and then adhesion properties were compared with adhesion tests. It has been determined that plasma technology significantly increases the adhesion strength.

References

[1] ASM Specialty Handbook: Aluminum and Aluminum Alloys, Editor J. R. Davis, 1993.

[2] A.Maroofi, N. Nava Safa, H. Ghomi, Atmospheric air plasma jet for improvement of paint adhesion to aluminium surface in industrial applications, Int. Journal of Adhesion and Adhesive 98, 2020,1-7.

[3] O. Lundera, B. Olsen, K. Nisancioglu, Pre-treatment of AA6060 aluminium alloy for adhesive bonding, International Journal of Adhesion and Adhesives 22(2):2002, 143-150.

[4] O.V. Penkov, M. Khadem, W.S. Lim, D.E. Kim, A review of recent applications of atmospheric pressure plasma jets for materials processing, J. Coat. Technol. Res., 12 2015, 225-235.

[5] B. Díaz-Benito, F. Velasco, Atmospheric plasma torch treatment of aluminium: improving wettability with silanes, Appl. Surf. Sci., 287, 2013, 263-269.

[6] T. S. M. Mui, L. L. G. Silva, V. Prysiazhnyi, K. G. Kostov, Surface modification of aluminium alloys by atmospheric pressure plasma treatments for enhancement of their adhesion properties, Surface and Coatings Technology, Vol.312, 2017, 32-36.

[7] ASTM D1002 (10), 2019 – Standard Test Method for Apparent Shear Strength of Single-Lap-Joint Adhesively Bonded Metal Specimens by Tension Loading (Metal-to-Metal).