Yüksek entropili alaşımların (YEA) vakum ark ergitme (VAM) yöntemi ile üretimi ve karakterizasyonu

High entropy alloys (HEA) are a new generation alloy group that, unlike conventional alloys, contains basic alloying elements in ratios of at least 5 elements to or near co-atoms. In the triple phase diagram, the composition lines of high entropy alloys are in the center of the diagram, unlike conventional alloys. This situation directly changes the thermodynamic structure, morphology, type of phases to occur and all properties of the material of the new generation alloy. These alloys are multi-component structures that have the potential to exhibit properties useful for engineering applications.Within the scope of this thesis, by examining the production AlCoCrFeNiTix of high entropy alloys, it is aimed to create phase diagrams of AlCoCrFeNiTix alloys, which were created for the first time in the literature. AlCoCrFeNiTix of high entropy alloys heat treatment behavior, characterization of these alloys, various properties, and to facilitate the determination of the predicted phases to occur in future studies. The AlCoCrFeNiTiX series designed with CALPHAD has been produced using the arc melting method of high entropy alloys. Heat treatment was applied to the selected samples among the produced samples. In the thesis study, the phase structure, morphology, thermal properties, and hardness properties of these alloys were examined in detail. In line with this information, a phase diagram of the AlCoCrFeNiTix high entropy alloy system, which was created under balanced cooling conditions, was obtained.