ANALISIS SEM-EDS DARI MATERIAL HIGH ENTROPY ALLOY (HEA) YANG DISINTESIS DENGAN TEKNIK MECHANICAL ALLOYING
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Date
2023-07
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Elfitra
Abstract
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.
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Keywords
HEA, mechanical alloying, SEM-EDS
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