Yazar "Özdemir, M." seçeneğine göre listele

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    Effect of welding speed to joinability on the friction stir welding
    (2004) Kurt, A.; Boz, M.; Özdemir, M.
    Although friction stir welding method has been developed for 10 years ago it has found intensive usage in industry now. In this study aluminium sheets with the size of 5×50×120 mm were joined by friction stir welding method by using a milling machine. Joining processes were carried out at 6.25, 10, 16 and 20 mm/min welding speeds and 800 spindle speed. In order to investigate the effect of welding speeds on metallurgical and mechanical properties, metallographic and mechanical tests were carried out on the welded areas of the samples.
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    Thermal, electrical, microstructure and microhardness properties of the eutectic Sn-3.5wt.%Ag alloy ?
    (2013) Meydaneri, F.; Saatçi, B.; Özdemir, M.
    The variation of thermal conductivity with temperature for Sn-3.5wt.%Ag eutectic alloy was measured with a radial heat flow apparatus. The thermal conductivity of the solid phase and temperature coefficient were also found to be 84.60 ± 0.09 W K-1 m-1 and 5.92 × 10 -4 K-1, respectively. The values of enthalpy of fusion (?H) and the specific heat (C-p) were also determined by differential scanning calorimeter (DSC) from heat flow curves during the transformation from eutectic solid to eutectic liquid. The variation of electrical conductivity with temperature for Sn-3.5wt.%Ag eutectic alloy was determined from the Wiedemann-Franz law by using the measured values of thermal conductivity. The microhardness of Sn-3.5wt.%Ag eutectic alloy was measured at approximately 5 different points with Vickers microhardness device. The microstructure of Sn-3.5wt.%Ag eutectic alloy was investigated by using scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) analysis.