Akademik Veri Yönetim Sistemi
Springer Tracts in Additive Manufacturing, Springer Nature, ss.417-429, 2025
The properties of materials are shaped by their chemical composition and the microstructure that emerges as a result of the applied manufacturing processes. Once the chemical composition and process are selected, the final microstructure and properties of the material can be predicted with the CALPHAD methodology within the scope of Computational Materials Engineering Technologies (HMMT). High entropy alloys (HEAs) have gained significant attention due to their superior mechanical and chemical properties, such as high strength, hardness, corrosion, and heat resistance. These alloys, consisting of at least five elements, are particularly valuable in industries like aviation, defense, and space. In this project, the properties of the CoCrFeMnNi–X (X = W) alloy, with an FCC structure, were studied. Using Thermo-Calc software and the TCHEA6 database, phase fractions, transformation temperatures, element distributions, and thermodynamic properties were predicted. Sample production was carried out and microstructure analysis, SEM and EDS analysis, XRD analysis, wear and hardness tests were performed on the sample. CoCrFeMnNiW high entropy alloy exhibits a typical dendritic microstructure after the casting process in microstructure examination. As a result of XRD analysis, a new phase development is observed in the alloy. When SEM and EDS analyses are examined, intermetallic compounds are seen. According to the data obtained from the Wear Test, the friction coefficient is measured as approximately 0.8 µm. Hardness measurements were taken from three different points of the sample and the average hardness value was determined as 260 HV. Mechanical properties were evaluated through hardness testing. The next phase will involve producing the alloy in powder or wire form for additive manufacturing suitability, potentially leading to a patent and reducing foreign material dependency.