A quinary Ti-Zr-Hf-Be-Cu high entropy bulk metallic glass with a critical size of 12 mm

S. F. Zhao; G. N. Yang; H. Y. Ding; K. F. Yao

doi:10.1016/j.intermet.2015.02.011

A quinary Ti-Zr-Hf-Be-Cu high entropy bulk metallic glass with a critical size of 12 mm

S. F. Zhao
, G. N. Yang
, H. Y. Ding
, K. F. Yao

Tsinghua University

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

95 Scopus citations

Abstract

A quinary Ti₂₀Zr₂₀Hf₂₀Be₂₀Cu₂₀ high entropy bulk metallic glass (HE-BMG), with a critical diameter (D_c) of 12 mm - the largest size in the reported quinary high entropy alloys (HEAs), has been successfully prepared by copper mold casing. This novel HE-BMG possesses a supercooled liquid region ΔT (=T_x - T_g) of 78 K, indicating a better thermal stability than those of other HE-BMGs. In addition, the HE-BMG exhibits a relatively good compressive plasticity (2.2 ± 0.1%) among the HE-BMGs. The newly developed HE-BMG may offer insights for the indepth understanding of the fundamental issues associated with the glass formation and the unique structure-property relationship when combining the features of HEAs and BMGs together.

Original language	English
Pages (from-to)	47-50
Number of pages	4
Journal	Intermetallics
Volume	61
DOIs	https://doi.org/10.1016/j.intermet.2015.02.011
State	Published - Jun 2015
Externally published	Yes

Keywords

A. High-entropy alloys
A. Metallic glasses
B. Glass forming ability
B. Mechanical properties
B. Thermal properties
C. Casting

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10.1016/j.intermet.2015.02.011

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title = "A quinary Ti-Zr-Hf-Be-Cu high entropy bulk metallic glass with a critical size of 12 mm",

abstract = "A quinary Ti20Zr20Hf20Be20Cu20 high entropy bulk metallic glass (HE-BMG), with a critical diameter (Dc) of 12 mm - the largest size in the reported quinary high entropy alloys (HEAs), has been successfully prepared by copper mold casing. This novel HE-BMG possesses a supercooled liquid region ΔT (=Tx - Tg) of 78 K, indicating a better thermal stability than those of other HE-BMGs. In addition, the HE-BMG exhibits a relatively good compressive plasticity (2.2 ± 0.1\%) among the HE-BMGs. The newly developed HE-BMG may offer insights for the indepth understanding of the fundamental issues associated with the glass formation and the unique structure-property relationship when combining the features of HEAs and BMGs together.",

keywords = "A. High-entropy alloys, A. Metallic glasses, B. Glass forming ability, B. Mechanical properties, B. Thermal properties, C. Casting",

author = "Zhao, \{S. F.\} and Yang, \{G. N.\} and Ding, \{H. Y.\} and Yao, \{K. F.\}",

year = "2015",

month = jun,

doi = "10.1016/j.intermet.2015.02.011",

language = "英语",

volume = "61",

pages = "47--50",

journal = "Intermetallics",

issn = "0966-9795",

publisher = "Elsevier Ltd",

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TY - JOUR

T1 - A quinary Ti-Zr-Hf-Be-Cu high entropy bulk metallic glass with a critical size of 12 mm

AU - Zhao, S. F.

AU - Yang, G. N.

AU - Ding, H. Y.

AU - Yao, K. F.

PY - 2015/6

Y1 - 2015/6

N2 - A quinary Ti20Zr20Hf20Be20Cu20 high entropy bulk metallic glass (HE-BMG), with a critical diameter (Dc) of 12 mm - the largest size in the reported quinary high entropy alloys (HEAs), has been successfully prepared by copper mold casing. This novel HE-BMG possesses a supercooled liquid region ΔT (=Tx - Tg) of 78 K, indicating a better thermal stability than those of other HE-BMGs. In addition, the HE-BMG exhibits a relatively good compressive plasticity (2.2 ± 0.1%) among the HE-BMGs. The newly developed HE-BMG may offer insights for the indepth understanding of the fundamental issues associated with the glass formation and the unique structure-property relationship when combining the features of HEAs and BMGs together.

AB - A quinary Ti20Zr20Hf20Be20Cu20 high entropy bulk metallic glass (HE-BMG), with a critical diameter (Dc) of 12 mm - the largest size in the reported quinary high entropy alloys (HEAs), has been successfully prepared by copper mold casing. This novel HE-BMG possesses a supercooled liquid region ΔT (=Tx - Tg) of 78 K, indicating a better thermal stability than those of other HE-BMGs. In addition, the HE-BMG exhibits a relatively good compressive plasticity (2.2 ± 0.1%) among the HE-BMGs. The newly developed HE-BMG may offer insights for the indepth understanding of the fundamental issues associated with the glass formation and the unique structure-property relationship when combining the features of HEAs and BMGs together.

KW - A. High-entropy alloys

KW - A. Metallic glasses

KW - B. Glass forming ability

KW - B. Mechanical properties

KW - B. Thermal properties

KW - C. Casting

UR - https://www.scopus.com/pages/publications/84924798284

U2 - 10.1016/j.intermet.2015.02.011

DO - 10.1016/j.intermet.2015.02.011

M3 - 文章

AN - SCOPUS:84924798284

SN - 0966-9795

VL - 61

SP - 47

EP - 50

JO - Intermetallics

JF - Intermetallics

ER -

A quinary Ti-Zr-Hf-Be-Cu high entropy bulk metallic glass with a critical size of 12 mm

Abstract

Keywords

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