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A Brief Discussion on High-Entropy Alloys vs Compositionally Complex Alloys
Version 1
: Received: 1 October 2021 / Approved: 5 October 2021 / Online: 5 October 2021 (09:21:32 CEST)
How to cite: Saha, M. A Brief Discussion on High-Entropy Alloys vs Compositionally Complex Alloys. Preprints 2021, 2021100075. https://doi.org/10.20944/preprints202110.0075.v1 Saha, M. A Brief Discussion on High-Entropy Alloys vs Compositionally Complex Alloys. Preprints 2021, 2021100075. https://doi.org/10.20944/preprints202110.0075.v1
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
Subject
Chemistry and Materials Science, Metals, Alloys and Metallurgy
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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