Pd20Pt20Cu20Ni20P20 high-entropy alloy as a bulk metallic glass in the centimeter

A. Takeuchi; N. Chen; T. Wada; Y. Yokoyama; H. Kato; A. Inoue; J. W. Yeh

doi:10.1016/j.intermet.2011.05.030

Pd₂₀Pt₂₀Cu₂₀Ni₂₀P₂₀ high-entropy alloy as a bulk metallic glass in the centimeter

A. Takeuchi, N. Chen, T. Wada, Y. Yokoyama, H. Kato, A. Inoue, J. W. Yeh

IMR - Materials Development Division

Research output: Contribution to journal › Article › peer-review

191 Citations (Scopus)

Abstract

A Pd₂₀Pt₂₀Cu₂₀Ni₂₀P ₂₀ bulk metallic glass (BMG) with a high-entropy (HE) alloy composition and a maximum diameter of 10 mm was fabricated by fluxed water quenching. The system and composition of the Pd₂₀Pt ₂₀Cu₂₀Ni₂₀P₂₀ alloy were determined from a prototype ternary Pd₄₀Ni₄₀P₂₀ BMG in accordance with two strategic alloy designs of (1) HE alloy defined by an equi-atomic alloy with five or more elements and (2) exchangeability of the constituent elements with a similar chemical nature in the periodic table. Pd₂₀Pt₂₀Cu₂₀Ni₂₀P₂₀ HE-BMG had a supercooled liquid range of 65 K and a reduced glass transition temperature of 0.71. Successful formation of Pd₂₀Pt ₂₀Cu₂₀Ni₂₀P₂₀ HE-BMG is significant to develop new alloys for HE alloys and BMGs.

Original language	English
Pages (from-to)	1546-1554
Number of pages	9
Journal	Intermetallics
Volume	19
Issue number	10
DOIs	https://doi.org/10.1016/j.intermet.2011.05.030
Publication status	Published - 2011 Oct

Keywords

A. Multiphase intermetallics
B. Alloy design
B. Glasses, metallic
B. Thermal stability
B. Thermodynamic and thermochemical properties

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10.1016/j.intermet.2011.05.030

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title = "Pd20Pt20Cu20Ni20P20 high-entropy alloy as a bulk metallic glass in the centimeter",

abstract = "A Pd20Pt20Cu20Ni20P 20 bulk metallic glass (BMG) with a high-entropy (HE) alloy composition and a maximum diameter of 10 mm was fabricated by fluxed water quenching. The system and composition of the Pd20Pt 20Cu20Ni20P20 alloy were determined from a prototype ternary Pd40Ni40P20 BMG in accordance with two strategic alloy designs of (1) HE alloy defined by an equi-atomic alloy with five or more elements and (2) exchangeability of the constituent elements with a similar chemical nature in the periodic table. Pd20Pt20Cu20Ni20P20 HE-BMG had a supercooled liquid range of 65 K and a reduced glass transition temperature of 0.71. Successful formation of Pd20Pt 20Cu20Ni20P20 HE-BMG is significant to develop new alloys for HE alloys and BMGs.",

keywords = "A. Multiphase intermetallics, B. Alloy design, B. Glasses, metallic, B. Thermal stability, B. Thermodynamic and thermochemical properties",

author = "A. Takeuchi and N. Chen and T. Wada and Y. Yokoyama and H. Kato and A. Inoue and Yeh, {J. W.}",

note = "Funding Information: This work was supported by Grants-in-Aid for Scientific Research from Japan Society for the Promotion of Science (JSPS). 1: Grant Program of Scientific Research (S) with a program title of “Fabrication of Bulk Metallic Glasses in Centimeter Class and their Industrialization” (grant number 20226013 ) and 2: Grant Program of Scientific Research (C) with program title of “Clarification of Local Atomic Arrangements of Metallic Glasses with Plastic Crystal Model and Fabrication of Novel Bulk Metallic Glasses” (grant number 21560715 ).",

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language = "English",

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T1 - Pd20Pt20Cu20Ni20P20 high-entropy alloy as a bulk metallic glass in the centimeter

AU - Takeuchi, A.

AU - Chen, N.

AU - Wada, T.

AU - Yokoyama, Y.

AU - Kato, H.

AU - Inoue, A.

AU - Yeh, J. W.

N1 - Funding Information: This work was supported by Grants-in-Aid for Scientific Research from Japan Society for the Promotion of Science (JSPS). 1: Grant Program of Scientific Research (S) with a program title of “Fabrication of Bulk Metallic Glasses in Centimeter Class and their Industrialization” (grant number 20226013 ) and 2: Grant Program of Scientific Research (C) with program title of “Clarification of Local Atomic Arrangements of Metallic Glasses with Plastic Crystal Model and Fabrication of Novel Bulk Metallic Glasses” (grant number 21560715 ).

PY - 2011/10

Y1 - 2011/10

N2 - A Pd20Pt20Cu20Ni20P 20 bulk metallic glass (BMG) with a high-entropy (HE) alloy composition and a maximum diameter of 10 mm was fabricated by fluxed water quenching. The system and composition of the Pd20Pt 20Cu20Ni20P20 alloy were determined from a prototype ternary Pd40Ni40P20 BMG in accordance with two strategic alloy designs of (1) HE alloy defined by an equi-atomic alloy with five or more elements and (2) exchangeability of the constituent elements with a similar chemical nature in the periodic table. Pd20Pt20Cu20Ni20P20 HE-BMG had a supercooled liquid range of 65 K and a reduced glass transition temperature of 0.71. Successful formation of Pd20Pt 20Cu20Ni20P20 HE-BMG is significant to develop new alloys for HE alloys and BMGs.

AB - A Pd20Pt20Cu20Ni20P 20 bulk metallic glass (BMG) with a high-entropy (HE) alloy composition and a maximum diameter of 10 mm was fabricated by fluxed water quenching. The system and composition of the Pd20Pt 20Cu20Ni20P20 alloy were determined from a prototype ternary Pd40Ni40P20 BMG in accordance with two strategic alloy designs of (1) HE alloy defined by an equi-atomic alloy with five or more elements and (2) exchangeability of the constituent elements with a similar chemical nature in the periodic table. Pd20Pt20Cu20Ni20P20 HE-BMG had a supercooled liquid range of 65 K and a reduced glass transition temperature of 0.71. Successful formation of Pd20Pt 20Cu20Ni20P20 HE-BMG is significant to develop new alloys for HE alloys and BMGs.

KW - A. Multiphase intermetallics

KW - B. Alloy design

KW - B. Glasses, metallic

KW - B. Thermal stability

KW - B. Thermodynamic and thermochemical properties

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ER -

Pd₂₀Pt₂₀Cu₂₀Ni₂₀P₂₀ high-entropy alloy as a bulk metallic glass in the centimeter

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