نوع مقاله : مقاله پژوهشی
موضوعات
عنوان مقاله English
نویسندگان English
The high strength, Young modulus, wear resistance of particle-reinforced polymer-based composites as compared to pure polymers cause increasing application of this material group in aerospace and transportation industry. In many situations, the part life depends on the surface properties such as wear resistance and surface quality. Friction stir process (FSP) is a process that can reinforce the surface layer of polymers without affecting the bulk of it. This process can distribute the filler uniformly in a specific layer thickness of matrix. In this study, the effects of nanoparticle content (wt%), pressure and incident angle of particles on erosion rate of nano-composite layer, which is formed by friction stir process, were experimentally investigated. The Material used for the matrix of nano-composite was polyamide 6 (PA6). The nanoclay (closite 20A), at three content level of 2, 4, and 6wt%, was selected as reinforcing particles to increase the strength and wear resistance of fabricated nano-composite layer. The results of experiments indicated that at the low incident angles (15~300) the maximum erosions resistance occurs in polyamide6/clay (6wt%) while at high incident angles (60~900) polyamide 6/clay (2wt%) represented highest level of erosion resistance. In all of the samples, the erosion rate increased as the spraying pressure of nanopartiles elevated.
کلیدواژهها English