Alloy designs of high-entropy crystalline and bulk glassy alloys by evaluating mixing enthalpy and delta parameter for quinary to decimal equi-atomic alloys

Akira Takeuchi, Kenji Amiya, Takeshi Wada, Kunio Yubuta, Wei Zhang, Akihiro Makino

研究成果: Contribution to journalArticle査読

20 被引用数 (Scopus)

抄録

The values of mixing enthalpy (ΔHmix) and Delta parameter (δ) were calculated with 73 elements from Miedema's model for multicomponent equi-atomic alloys to investigate the possibilities of the alloys to be formed into high-entropy (H-E) alloys or high-entropy bulk metallic glasses (HE-BMGs). The equi-atomic alloys from about 15 million (73C5) quinary to 621 billion (73C10) decimal systems were evaluated by referring to a ΔHmixδ diagram for zones S and B's for H-E alloys with disordered solid solutions and BMGs, respectively, reported by Zhang et al. The results revealed that the number of quinary equi-atomic alloys plotted in zone S is 28405 (∼0.19% in 73C5), whereas those in zones B1 and B2 for conventional and Cu- and Mg-based BMGs, respectively, were 1036385 and 21518 (∼6.90 and ∼0.14%), respectively. This kind of statistical approach using ΔHmixδ diagram will lead to finding out unprecedented H-E alloys and HE-BMGs.

本文言語英語
ページ(範囲)165-170
ページ数6
ジャーナルMaterials Transactions
55
1
DOI
出版ステータス出版済み - 2014
外部発表はい

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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