Analyzing Adhesion of Epoxy/Steel Interlayer in Scratch Test

The aim of this paper is to investigate use of an experimental technique to determine which parameters effects on the interfacial durability performance of adhesive on the metallic adherends as zinc plated mild steel (S235) by using Taguchi method. The experimental layout has been used four scratch force parameters using the L16 (4 1 x2 3 ) orthogonal array. The statistical methods of signal to noise ratio (SNR) and the analysis of variance (ANOVA) were applied to examine effects of surface treatment, adhesive type, blade angle and thickness on scratch force and scratch energy. Besides, the surface analysis was carried out the morphological modifications as well as to perform elemental analyses of the pre-treated surfaces. Results of this study indicate that the thickness and surface treatment are main parameters influencing scratch force (by 52.4% and 19.9%) and scratch energy (by 44.0 % and 25.6%), respectively.