Al_0.5TiZrPdCuNi High-Entropy (H-E) Alloy Developed through Ti₂₀Zr₂₀Pd₂₀Cu₂₀Ni₂₀ H-E Glassy Alloy Comprising Inter-Transition Metals

• Takeuchi Akira

  WPI-Advanced Institute for Materials Research, Tohoku University

• Wang Junqiang

  WPI-Advanced Institute for Materials Research, Tohoku University

• Chen Na

  WPI-Advanced Institute for Materials Research, Tohoku University

• Zhang Wei

  Institute for Materials Research, Tohoku University School of Materials Science and Engineering, Dalian University of Technology

• Yokoyama Yoshihiko

  Institute for Materials Research, Tohoku University

• Yubuta Kunio

  Institute for Materials Research, Tohoku University

• Zhu Shengli

  Institute for Materials Research, Tohoku University

Bibliographic Information

Other Title

• Al₀.₅TiZrPdCuNi High-Entropy (H-E) Alloy Developed through Ti₂₀Zr₂₀Pd₂₀Cu₂₀Ni₂₀ H-E Glassy Alloy Comprising Inter-Transition Metals

Abstract

An Al_0.5TiZrPdCuNi high-entropy (H-E) alloy with a bcc single phase was found through a Ti₂₀Zr₂₀Pd₂₀Cu₂₀Ni₂₀ H-E glassy alloy designed based on equi-atomicity inherent to H-E alloys. The constituent elements and the composition of the Ti₂₀Zr₂₀Pd₂₀Cu₂₀Ni₂₀ alloy were determined by regarding a binary Cu₆₄Zr₃₆ bulk metallic glass as Cu₆₀Zr₄₀ alloy and subsequent replacements of the Cu and Zr atoms with other late- and early-transition metals, respectively. The Ti₂₀Zr₂₀Pd₂₀Cu₂₀Ni₂₀ alloy in a ribbon shape forms into a glassy single phase. The addition of 0.5Al to the Ti₂₀Zr₂₀Pd₂₀Cu₂₀Ni₂₀ H-E glassy alloy resulted in forming a bcc single phase for a rod specimen with a diameter of 1.5 mm. The analysis revealed that the Al_0.5TiZrPdCuNi H-E alloy is characterized by mixing enthalpy of −46.7 kJ·mol⁻¹ and Delta parameter of 8.8, which are considerably larger and negative for the former and larger for the latter against the conventional H-E alloys.

Journal

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 54 (5), 776-782, 2013

  The Japan Institute of Metals and Materials

Keywords

• high-entropy alloy
• metallic glass
• mixing enthalpy
• atomic size ratio
• alloy design
• body centered cubic phase
• Laves phase

Details

• CRID: 1390282679228582912
• NII Article ID: 10031168425
• NII Book ID: AA1151294X
• DOI: 10.2320/matertrans.m2012370
• COI: 1:CAS:528:DC%2BC3sXhtFChs7fN
• ISSN: 13475320
• ISSN: 13459678
• NDL BIB ID: 024457093
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I024457093
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/54/5/54_M2012370/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed