Effect of Ti addition on the crystallization behavior and glass-forming ability of Zr-Al-Cu alloys

J. B. Qiang; W. Zhang; G. Q. Xie; A. Inoue

doi:10.1016/j.jnoncrysol.2007.11.002

Effect of Ti addition on the crystallization behavior and glass-forming ability of Zr-Al-Cu alloys

J. B. Qiang^*
, W. Zhang
, G. Q. Xie
, A. Inoue

^*Corresponding author for this work

Tohoku University

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

18 Scopus citations

Abstract

The crystallization behavior of melt-spun (Zr₆₅Al_7.5Cu_27.5)_100-xTi_x (x = 0-15; in at.%) metallic glasses has been investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM) and differential scanning calorimetry (DSC). The DSC traces showed an altered crystallization mode in the vicinity of 3 at.% Ti addition. A metastable icosahedral quasicrystal precipitated at the first crystallization stage of the Ti-bearing metallic glasses, which subsequently transformed to the stable Zr₂Cu-type phase in the followed exothermic reaction. The glass-forming abilities (GFAs) of these metallic glasses were assessed by the recognized GFA indicators T_rg, ΔT_x and γ. BMGs were easily made in the compositions containing 3-7 at.% Ti by means of copper mold casting. The validity of these parameters was clarified using the critical BMG forming diameter evidence.

Original language	English
Pages (from-to)	2054-2059
Number of pages	6
Journal	Journal of Non-Crystalline Solids
Volume	354
Issue number	18
DOIs	https://doi.org/10.1016/j.jnoncrysol.2007.11.002
State	Published - 15 Apr 2008
Externally published	Yes

Keywords

Amorphous metals
Quasicrystals
metallic glasses

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10.1016/j.jnoncrysol.2007.11.002

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title = "Effect of Ti addition on the crystallization behavior and glass-forming ability of Zr-Al-Cu alloys",

abstract = "The crystallization behavior of melt-spun (Zr65Al7.5Cu27.5)100-xTix (x = 0-15; in at.\%) metallic glasses has been investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM) and differential scanning calorimetry (DSC). The DSC traces showed an altered crystallization mode in the vicinity of 3 at.\% Ti addition. A metastable icosahedral quasicrystal precipitated at the first crystallization stage of the Ti-bearing metallic glasses, which subsequently transformed to the stable Zr2Cu-type phase in the followed exothermic reaction. The glass-forming abilities (GFAs) of these metallic glasses were assessed by the recognized GFA indicators Trg, ΔTx and γ. BMGs were easily made in the compositions containing 3-7 at.\% Ti by means of copper mold casting. The validity of these parameters was clarified using the critical BMG forming diameter evidence.",

keywords = "Amorphous metals, Quasicrystals, metallic glasses",

author = "Qiang, \{J. B.\} and W. Zhang and Xie, \{G. Q.\} and A. Inoue",

year = "2008",

month = apr,

day = "15",

doi = "10.1016/j.jnoncrysol.2007.11.002",

language = "英语",

volume = "354",

pages = "2054--2059",

journal = "Journal of Non-Crystalline Solids",

issn = "0022-3093",

publisher = "Elsevier B.V.",

number = "18",

}

TY - JOUR

T1 - Effect of Ti addition on the crystallization behavior and glass-forming ability of Zr-Al-Cu alloys

AU - Qiang, J. B.

AU - Zhang, W.

AU - Xie, G. Q.

AU - Inoue, A.

PY - 2008/4/15

Y1 - 2008/4/15

N2 - The crystallization behavior of melt-spun (Zr65Al7.5Cu27.5)100-xTix (x = 0-15; in at.%) metallic glasses has been investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM) and differential scanning calorimetry (DSC). The DSC traces showed an altered crystallization mode in the vicinity of 3 at.% Ti addition. A metastable icosahedral quasicrystal precipitated at the first crystallization stage of the Ti-bearing metallic glasses, which subsequently transformed to the stable Zr2Cu-type phase in the followed exothermic reaction. The glass-forming abilities (GFAs) of these metallic glasses were assessed by the recognized GFA indicators Trg, ΔTx and γ. BMGs were easily made in the compositions containing 3-7 at.% Ti by means of copper mold casting. The validity of these parameters was clarified using the critical BMG forming diameter evidence.

AB - The crystallization behavior of melt-spun (Zr65Al7.5Cu27.5)100-xTix (x = 0-15; in at.%) metallic glasses has been investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM) and differential scanning calorimetry (DSC). The DSC traces showed an altered crystallization mode in the vicinity of 3 at.% Ti addition. A metastable icosahedral quasicrystal precipitated at the first crystallization stage of the Ti-bearing metallic glasses, which subsequently transformed to the stable Zr2Cu-type phase in the followed exothermic reaction. The glass-forming abilities (GFAs) of these metallic glasses were assessed by the recognized GFA indicators Trg, ΔTx and γ. BMGs were easily made in the compositions containing 3-7 at.% Ti by means of copper mold casting. The validity of these parameters was clarified using the critical BMG forming diameter evidence.

KW - Amorphous metals

KW - Quasicrystals

KW - metallic glasses

UR - https://www.scopus.com/pages/publications/40649124565

U2 - 10.1016/j.jnoncrysol.2007.11.002

DO - 10.1016/j.jnoncrysol.2007.11.002

M3 - 文章

AN - SCOPUS:40649124565

SN - 0022-3093

VL - 354

SP - 2054

EP - 2059

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

IS - 18

ER -

Effect of Ti addition on the crystallization behavior and glass-forming ability of Zr-Al-Cu alloys

Abstract

Keywords

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