A new Cu-Hf-Al ternary bulk metallic glass with high glass forming ability and ductility

P. Jia; H. Guo; Y. Li; J. Xu; E. Ma

doi:10.1016/j.scriptamat.2006.02.042

A new Cu-Hf-Al ternary bulk metallic glass with high glass forming ability and ductility

P. Jia
, H. Guo
, Y. Li
, J. Xu^*
, E. Ma

^*Corresponding author for this work

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

103 Scopus citations

Abstract

We have discovered a new Cu-based bulk metallic glass (BMG). Although of a simple Cu₄₉Hf₄₂Al₉ ternary composition, the as-cast alloy is a monolithic, uniform BMG with a critical diameter as large as 10 mm. The width of the supercooled liquid region ΔT_x and the reduced glass transition temperature T_rg for this glass are 85 K and 0.62, respectively. In addition to its high glass-forming ability and high density of ∼11 g/cc, this BMG exhibits high ductility with a compressive plastic strain of 11-13%, making it a good candidate for applications as well as for studies of deformation behavior of Cu-based BMGs.

Original language	English
Pages (from-to)	2165-2168
Number of pages	4
Journal	Scripta Materialia
Volume	54
Issue number	12
DOIs	https://doi.org/10.1016/j.scriptamat.2006.02.042
State	Published - Jun 2006
Externally published	Yes

Keywords

Bulk amorphous alloys
Copper
Ductility
Glass-forming ability
Metallic glasses
Plasticity

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10.1016/j.scriptamat.2006.02.042

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title = "A new Cu-Hf-Al ternary bulk metallic glass with high glass forming ability and ductility",

abstract = "We have discovered a new Cu-based bulk metallic glass (BMG). Although of a simple Cu49Hf42Al9 ternary composition, the as-cast alloy is a monolithic, uniform BMG with a critical diameter as large as 10 mm. The width of the supercooled liquid region ΔTx and the reduced glass transition temperature Trg for this glass are 85 K and 0.62, respectively. In addition to its high glass-forming ability and high density of ∼11 g/cc, this BMG exhibits high ductility with a compressive plastic strain of 11-13\%, making it a good candidate for applications as well as for studies of deformation behavior of Cu-based BMGs.",

keywords = "Bulk amorphous alloys, Copper, Ductility, Glass-forming ability, Metallic glasses, Plasticity",

author = "P. Jia and H. Guo and Y. Li and J. Xu and E. Ma",

year = "2006",

month = jun,

doi = "10.1016/j.scriptamat.2006.02.042",

language = "英语",

volume = "54",

pages = "2165--2168",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Acta Materialia Inc",

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TY - JOUR

T1 - A new Cu-Hf-Al ternary bulk metallic glass with high glass forming ability and ductility

AU - Jia, P.

AU - Guo, H.

AU - Li, Y.

AU - Xu, J.

AU - Ma, E.

PY - 2006/6

Y1 - 2006/6

N2 - We have discovered a new Cu-based bulk metallic glass (BMG). Although of a simple Cu49Hf42Al9 ternary composition, the as-cast alloy is a monolithic, uniform BMG with a critical diameter as large as 10 mm. The width of the supercooled liquid region ΔTx and the reduced glass transition temperature Trg for this glass are 85 K and 0.62, respectively. In addition to its high glass-forming ability and high density of ∼11 g/cc, this BMG exhibits high ductility with a compressive plastic strain of 11-13%, making it a good candidate for applications as well as for studies of deformation behavior of Cu-based BMGs.

AB - We have discovered a new Cu-based bulk metallic glass (BMG). Although of a simple Cu49Hf42Al9 ternary composition, the as-cast alloy is a monolithic, uniform BMG with a critical diameter as large as 10 mm. The width of the supercooled liquid region ΔTx and the reduced glass transition temperature Trg for this glass are 85 K and 0.62, respectively. In addition to its high glass-forming ability and high density of ∼11 g/cc, this BMG exhibits high ductility with a compressive plastic strain of 11-13%, making it a good candidate for applications as well as for studies of deformation behavior of Cu-based BMGs.

KW - Bulk amorphous alloys

KW - Copper

KW - Ductility

KW - Glass-forming ability

KW - Metallic glasses

KW - Plasticity

UR - https://www.scopus.com/pages/publications/33646022244

U2 - 10.1016/j.scriptamat.2006.02.042

DO - 10.1016/j.scriptamat.2006.02.042

M3 - 文章

AN - SCOPUS:33646022244

SN - 1359-6462

VL - 54

SP - 2165

EP - 2168

JO - Scripta Materialia

JF - Scripta Materialia

IS - 12

ER -

A new Cu-Hf-Al ternary bulk metallic glass with high glass forming ability and ductility

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Keywords

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