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説明:

The stability of solid-solution phases in FCC and BCC lattices was examined in multi-component alloys based on the CALPHAD technique using the compound energy formalism and regular solution model. From the thermodynamic calculations, it was found in ternary systems that the single solid-solution phase became stable around the equiatomic composition where the configurational entropy was the largest value. The transition temperatures decreased with the increasing number of elements in the system. The A1/L10 transition temperature was affected by the stoichiometric compositions of the ordered phases existing at the equiatomic composition, whereas it was not significant for the A2/B2 transition in the two-sublattice model. The single solid-solution phase region at equiatomic compositions was affected by variations in the interaction parameters. In multi-component systems, the variations were averaged with increasing the number of elements in the system. This suggests that high-entropy alloys can afford a variety of elements.

権利情報:

• In Copyright
  

キーワード: High-entropy alloy, CALPHAD, High-entropy effect

刊行年月日: 2023-04-01

出版者: Japan Institute of Metals

掲載誌:

• MATERIALS TRANSACTIONS (ISSN: 13459678) vol. 64 issue. 4 p. 877-884

研究助成金:

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.2320/matertrans.MT-M2022167

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更新時刻: 2024-01-05 22:11:15 +0900

MDRでの公開時刻: 2023-05-10 14:38:22 +0900