Guidelines in predicting phase formation of high-entropy alloys

With multiple elements mixed at equal or near-equal molar ratios, the emerging, high-entropy alloys (HEAs), also named multi-principal elements alloys (MEAs), have posed tremendous challenges to materials scientists and physicists, e.g., how to predict high-entropy phase formation and design alloys....

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Bibliographic Details
Published in:MRS communications 2014-06, Vol.4 (2), p.57-62
Main Authors: Zhang, Y., Lu, Z.P., Ma, S.G., Liaw, P.K., Tang, Z., Cheng, Y.Q., Gao, M.C.
Format: Article
Language:English
Subjects:
Alloying elements
Aluminum
Biomaterials
Characterization and Evaluation of Materials
Design optimization
Engineering
Entropy
Entropy of formation
Guidelines
High entropy alloys
Laboratories
Materials Engineering
Materials Science
Metal fatigue
Nanotechnology
Phase transitions
Physicists
Polymer Sciences
Research Letter
Research Letters
Solid solutions
Solvents
Titanium alloys
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Summary:With multiple elements mixed at equal or near-equal molar ratios, the emerging, high-entropy alloys (HEAs), also named multi-principal elements alloys (MEAs), have posed tremendous challenges to materials scientists and physicists, e.g., how to predict high-entropy phase formation and design alloys. In this paper, we propose some guidelines in predicting phase formation, using thermodynamic and topological parameters of the constituent elements. This guideline together with the existing ones will pave the way toward the composition design of MEAs and HEAs, as well as property optimization based on the composition–structure–property relationship.
ISSN:2159-6859
2159-6867
DOI:10.1557/mrc.2014.11