4.6 Article

A Criterion for Topological Close-Packed Phase Formation in High Entropy Alloys

Journal

ENTROPY
Volume 17, Issue 4, Pages 2355-2366

Publisher

MDPI
DOI: 10.3390/e17042355

Keywords

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Funding

  1. National Natural Science Foundation of China [51104029, 51134013, 51471044]
  2. Fundamental Research Funds for the Central Universities
  3. Key Laboratory of Basic Research Projects of Liaoning Province Department of Education [LZ2014007]
  4. Natural Science Foundation of Liaoning Province [2014028013]

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The stability of topological close-packed (TCP) phases were found to be well related to the average value of the d-orbital energy level ( [GRAPHICS] ) for most reported high entropy alloys (HEAs). Excluding some HEAs that contain high levels of the elements aluminum and vanadium, the results of this study indicated that the TCP phases form at [GRAPHICS] > 1.09. This criterion, as a semi-empirical method, can play a key role in designing and preparing HEAs with high amounts of transitional elements.

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