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논문 기본 정보

자료유형
학술저널
저자정보
Fateme Yoosefan (Isfahan University of Technology) Ali Ashrafi (Isfahan University of Technology) Seyed Mahmoud Monir vaghefi (Isfahan University of Technology) Ionut Constantin (New Materials and Technologies (MTN) Laboratory)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.26 No.8
발행연도
2020.1
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1,262 - 1,269 (8page)

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초록· 키워드

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CoCrFeMnNi high entropy alloy (HEAs) thin films were prepared using the pulse electrodeposition method. The films wereco-deposited in an electrolyte based on an N,N-dimethylformamide—acetonitrile (CH3CN) organic system containing Co,Cr, Fe, Mn, and Ni chloride cations using the pulse electrodeposition method at frequencies of 2500 and 5000 Hz as well asduty cycles of 50% and 60%. The composition and morphology of the resulting thin films were studied. The energy-dispersiveX-ray spectroscopy analysis revealed that all five elements were successfully co-deposited. The calculated entropy of mixingin different conditions ranged between 11.86 and 12.46 J K−1 mol−1 for a duty cycle of 60% in frequencies of 2500 and5000 Hz, respectively, this indicates that the resulting materials are HEAs. The scanning electron microscopy investigationsrevealed that the prepared films at a duty cycle of 50% in frequencies of 2500 and 5000 Hz exhibit an inhomogeneous morphologywith crystal clusters measuring between 330 and 399 nm. The grazing incidence X-ray diffraction patterns indicatedthat the as-deposited CoCrFeMnNi thin films consisted of a single face-centered-cubic structure.

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