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Microstructure of Rapidly Solidified Melt-Spun Ribbon in AlCoCrFeNi2.1 Eutectic High-Entropy Alloys

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Abstract:

The microstructure of rapidly solidified melt-spun ribbon in AlCoCrFeNi2.1 eutectic high entropy alloys (EHEAs) was investigated for clarifying the effect of rapid solidification on the constituent phases and microstructure of specimens formed through solidification. XRD analysis indicates that the melt-spun ribbons were composed of a mixture of fcc and bcc phases. The rapidly solidified melt-spun ribbon shows a fine poly-crystalline structure with fcc matrix phase and crystalline precipitates in the grain boundary, indicating that the solidification structure in the melt-spun ribbon was significantly different from that obtained by conventional casting processes.

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Periodical:

Materials Science Forum (Volume 879)

Pages:

1350-1354

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.879.1350

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Online since:

November 2016

Authors:

Takeshi Nagase*, Mamoru Takemura, Mitsuaki Matsumuro

Keywords:

High Entropy Alloys (HEAs), Microstructure, Rapid Solidification

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© 2017 Trans Tech Publications Ltd. All Rights Reserved

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