چكيده به لاتين
Amorphous alloys with properties such as high strength and hardness, excellent corrosion resistance, good magnetic and electrical properties are widely used in various industries. In this study, the possibility of developing amorphous silver alloys by fast solidification method was investigated. For this purpose, alloy systems were first designed based on the principles of thermodynamics, kinetics and diagram phasies. To make the amorphous alloy, the designed chemical compounds were first cast and then quickly frozen by the method of Melt Spinning. Spinned molten alloys for characterization and amorphous phase formation were characterized by X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM) and X-ray energy diffraction (EDS) spectroscopy. According to thermodynamic theories and diagram phasies, in the first step, three alloy systems based on silver, copper and silicon were cast and molten. In the second step, by adding the element Germanium, three new compounds were made to improve the amorphous phase formation conditions. Based on the results in the samples of the first step, the Ag81.87Cu9.96Si8.25 system was a better option to continue the research process due to the formation of amorphous phase and minimal crystalline peaks. According to X-ray diffraction patterns, in the second step, by adding 5, 10 and 15 atomic amounts of germanium and reducing the amount of silver in the system, the Ag66.79 Cu9.96 Si8.25 Ge15 alloy system improved the conditions for the formation of the amorphous phase.
