Effect of Al on the local structure and stability of Zr-based metallic glasses

Junji Saida; Takashi Sanada; Shigeo Sato; Muneyuki Imafuku; Eiichiro Matsubara; Akihisa Inoue

doi:10.1016/j.jallcom.2006.08.157

Effect of Al on the local structure and stability of Zr-based metallic glasses

Junji Saida, Takashi Sanada, Shigeo Sato, Muneyuki Imafuku, Eiichiro Matsubara, Akihisa Inoue

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Abstract

The effect of Al addition on the local structure and the thermal stability in the Zr-Ni-based metallic glass is investigated. It is well known that Al is a very effective element on the enhancement of glass-forming ability (GFA), i.e., stability of supercooled liquid state in the alloy system. We have found that the dominant local structure is icosahedral-like in the Zr₇₀Al₁₀Ni₂₀ metallic glass and the tetragonal Zr₂Ni-like local in the Zr₇₀Ni₃₀ amorphous alloy. It is concluded that the change in the dominant local structure contributes to the enhancement of the stability of supercooled liquid state in the alloy.

Original language	English
Pages (from-to)	135-137
Number of pages	3
Journal	Journal of Alloys and Compounds
Volume	434-435
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.jallcom.2006.08.157
Publication status	Published - 2007 May 31

Keywords

Atomic scale structure
EXAFS
Metallic glasses
Quasicrystal
X-ray diffraction

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2006.08.157

Cite this

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title = "Effect of Al on the local structure and stability of Zr-based metallic glasses",

abstract = "The effect of Al addition on the local structure and the thermal stability in the Zr-Ni-based metallic glass is investigated. It is well known that Al is a very effective element on the enhancement of glass-forming ability (GFA), i.e., stability of supercooled liquid state in the alloy system. We have found that the dominant local structure is icosahedral-like in the Zr70Al10Ni20 metallic glass and the tetragonal Zr2Ni-like local in the Zr70Ni30 amorphous alloy. It is concluded that the change in the dominant local structure contributes to the enhancement of the stability of supercooled liquid state in the alloy.",

keywords = "Atomic scale structure, EXAFS, Metallic glasses, Quasicrystal, X-ray diffraction",

author = "Junji Saida and Takashi Sanada and Shigeo Sato and Muneyuki Imafuku and Eiichiro Matsubara and Akihisa Inoue",

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T1 - Effect of Al on the local structure and stability of Zr-based metallic glasses

AU - Saida, Junji

AU - Sanada, Takashi

AU - Sato, Shigeo

AU - Imafuku, Muneyuki

AU - Matsubara, Eiichiro

AU - Inoue, Akihisa

PY - 2007/5/31

Y1 - 2007/5/31

N2 - The effect of Al addition on the local structure and the thermal stability in the Zr-Ni-based metallic glass is investigated. It is well known that Al is a very effective element on the enhancement of glass-forming ability (GFA), i.e., stability of supercooled liquid state in the alloy system. We have found that the dominant local structure is icosahedral-like in the Zr70Al10Ni20 metallic glass and the tetragonal Zr2Ni-like local in the Zr70Ni30 amorphous alloy. It is concluded that the change in the dominant local structure contributes to the enhancement of the stability of supercooled liquid state in the alloy.

AB - The effect of Al addition on the local structure and the thermal stability in the Zr-Ni-based metallic glass is investigated. It is well known that Al is a very effective element on the enhancement of glass-forming ability (GFA), i.e., stability of supercooled liquid state in the alloy system. We have found that the dominant local structure is icosahedral-like in the Zr70Al10Ni20 metallic glass and the tetragonal Zr2Ni-like local in the Zr70Ni30 amorphous alloy. It is concluded that the change in the dominant local structure contributes to the enhancement of the stability of supercooled liquid state in the alloy.

KW - Atomic scale structure

KW - EXAFS

KW - Metallic glasses

KW - Quasicrystal

KW - X-ray diffraction

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SN - 0925-8388

VL - 434-435

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JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - SPEC. ISS.

ER -

Effect of Al on the local structure and stability of Zr-based metallic glasses

Abstract

Keywords

ASJC Scopus subject areas

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