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A Brief Discussion on High-Entropy Alloys vs Compositionally Complex Alloys
This version is not peer-reviewed.
Submitted:
01 October 2021
Posted:
05 October 2021
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Abstract
High-entropy alloys (HEAs) are of great interest in the field of materials science and engineering. Unlike conventional alloys, which contain a maximum of two base metals, this new category of materials consists of multi-principle elements and the possible number of alloy compositions, in case of HEAs, is outstandingly higher than that for conventional alloys. Here, a review on the high-entropy alloys, has been provided, on the issue whether the earliest definition of High- Entropy alloys, proposed in 2004[2, 4], is consistent with one of the four-component equiatomic Compositionally complex alloys exhibiting a “High-entropy” effect.
Keywords:
High-entropy alloys
; compositional complexity
; valence electron concentration
; Miedema model
; paired sigma forming element
Copyright: This open access article is published under a Creative Commons CC BY 4.0 license, which permit the free download, distribution, and reuse, provided that the author and preprint are cited in any reuse.
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