Microstructural Investigation Of The Cast And Homogenized Al10Co25Cr8Fe15Ni36Ti6 High Entropy Alloy

Seifollahi, Masumeh; Yousefi, Ebrahim; Abbasi, Seyed Mahdi

doi:10.30501/jamt.2024.419852.1290

Articles in Press

Document Type : Original Reaearch Article

Authors

¹ Malek Ashtar university of technology

² Malek Ashtar University of Technology

³ Malek ashtar university of technology

10.30501/jamt.2024.419852.1290

Abstract

Microstructural investigation of the cast and homogenized Al10Co25Cr8Fe15Ni36Ti6 high entropy alloy is the purpose of this study. In this article, the microstructure of the high entropy alloy was investigated after casting in vacuum induction melting and electro slag remelting processes and also after homogenized at the temperature of 1220 °C for the time of 17 hr using optical microscopy, Scanning electron microscopy, and X-ray diffraction. On the basis of theoretical measurements, the mixing entropy, atomic size differences, and Valence electron concentration are 13.05 kJ/mol, 8.8 and 7.97, respectively. These values predicted the formation of a solid solution matrix as the type of BCC + FCC and intermetallic phases. Cast alloy microstructure included γ+ γʹ in dendritic zones and γʹ+ NiAl in interdendritic areas. After homogenization, the dendritic structures are almost eliminated and they are discontinuous which is an indication of elements distribution homogenization. NiAl phase is also omitted after the homogenization process.

Keywords

Main Subjects

Alloys (Ferrous, Non-Ferrous (Copper, Titanium, Magnesium, Aluminum, Nickel,...), Shape-Memory, ...)

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Journal of Advanced Materials and Technologies

Microstructural Investigation Of The Cast And Homogenized Al10Co25Cr8Fe15Ni36Ti6 High Entropy Alloy

References

References

Articles in Press, Accepted Manuscript
Available Online from 29 March 2024

Microstructural Investigation Of The Cast And Homogenized Al10Co25Cr8Fe15Ni36Ti6 High Entropy Alloy

References

References

Articles in Press, Accepted Manuscript Available Online from 29 March 2024

Articles in Press, Accepted Manuscript
Available Online from 29 March 2024