Browsing by Author "Fahrezi, Irgi Ahmad"

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    ANALISIS SEM-EDS DARI MATERIAL HIGH ENTROPY ALLOY (HEA) YANG DISINTESIS DENGAN TEKNIK MECHANICAL ALLOYING
    (Elfitra, 2023-07) Fahrezi, Irgi Ahmad; Muhdarina, Muhdarina; Sembiring, Kiky Corneliasari
    The surface morphology of HEA Co-Cr-Al-Fe-Ni material and distribution of metal compositions in alloy were studied using Scanning Electron Microscopy-Energy Dispersive X-ray Spectroscopy (SEM-EDS) analysis. A total of 40 g of HEA material was synthesized through a 60-hour milling process with the addition of 1 wt% stearic acid. The results revealed that the material surface exhibited a spherical shape with a less even distribution of metal composition. Although the entropy value of the Co-Cr- Al-Fe-Ni alloy material configuration met the criteria for being classified as a HEA. It can be concluded that the mechanical alloying technique was successful in synthesizing the HEA material.