Sattari, M., Ranjbaran, M. (2012). Effect of Particle Volume Fraction on the Tensile Properties of Composite Al6061/SiC Materials by Hot Extrusion. Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 5(1), 1-8.
Mohammad Reza Sattari; Mohammad Ranjbaran. "Effect of Particle Volume Fraction on the Tensile Properties of Composite Al6061/SiC Materials by Hot Extrusion". Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 5, 1, 2012, 1-8.
Sattari, M., Ranjbaran, M. (2012). 'Effect of Particle Volume Fraction on the Tensile Properties of Composite Al6061/SiC Materials by Hot Extrusion', Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 5(1), pp. 1-8.
Sattari, M., Ranjbaran, M. Effect of Particle Volume Fraction on the Tensile Properties of Composite Al6061/SiC Materials by Hot Extrusion. Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 2012; 5(1): 1-8.
Effect of Particle Volume Fraction on the Tensile Properties of Composite Al6061/SiC Materials by Hot Extrusion
In the present study the effect of phase volume fraction on the reinforcement of microstructure and tensile properties of composite extrusion process Al6061/SiC has been studied. For this purpose, the base alloy Al6061 using pure aluminum ingots, silicon, of Al-50% Mg, Al-10% Cr and a thin copper rod was prepared. Next, the composite Al6061/5% SiC, Al6061/10% SiC, Al6061/15% SiC and Al6061/20% SiC through the addition of various amounts of silicon carbide particles was prepared by cast stirring. For composite samples containing different volume fractions of the reinforced SiC, hot extrusion operation was performed. Evaluation of microstructure using light and electron microscope was performed. During the study, it was observed that with the increasing amount of reinforcement, porosity and pores in the microstructure was increased. The extrusion process reduces the amount of porosity as well as creating fine reinforcement. In order to investigate the effect of extrusion process on the mechanical properties of the composite, tensile test were used. Results showed that, with increasing SiC weight to 5 percent, it will increase ultimate tensile strength of the composite. In addition, it is shown that the extrusion process will result a homogenous particles distribution which in turn will improve the tensile stress.
بررسی اثر کسر حجمی فاز تقویتکننده بر خواص کششی کامپوزیت Al6061/SiC به روش اکستروژن گرم
Authors [Persian]
محمد رضا ستاری; محمد رنجبران
Abstract [Persian]
در این پژوهش تاثیر کسر حجمی فاز تقویت کننده برخواص کششی کامپوزیت Al6061/SiC با اعمال اکستروژن گرم مورد بررسی قرار میگیرد.کامپوزیت های آلومینیم – سیلیسیم به دلیل خواص سایشی و مکانیکی بالا مورد توجه هستند. برای انجام این تحقیق کامپوزیت Al6061/SiC با درصدهای مختلف 5، 10 ، 15 و 20 درصد کاربید سیلیسیم به روش ریختهگری همزدنی تولیدشد و بر روی نمونههای کامپوزیتی حاوی کسرهای حجمی ذکرشده، عملیات اکستروژن گرم انجام شد. سپس خواص کششی محصول مورد بررسی قرار گرفت. در ادامه بررسیهای ریزساختاری با استفاده از میکروسکوپ نوری و الکترونی انجام شد. نتایج بدست آمده نشان می دهد که افزایش میزان کاربید سیلیسیم تا 5 درصد وزنی باعث افزایش استحکام کششی کامپوزیت فوق گردید. همچنین اعمال فرآیند اکستروژن باعث کاهش میزان تخلخل نسبت به حالت ریختگی و در نتیجه بهبود خواص کششی شد.
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