The relations between ΔTx and the glass forming ability of bulk amorphous Zr-Cu-Ni-Al-Hf-Ti and Zr52.5Cu17.9Ni 14.6Al10Ti5 alloys

Dawei Xing; Jianfei Sun; Jun Shen; Gang Wang; Ming Yan

doi:10.1016/j.jallcom.2003.11.155

The relations between ΔT_x and the glass forming ability of bulk amorphous Zr-Cu-Ni-Al-Hf-Ti and Zr_52.5Cu_17.9Ni _14.6Al₁₀Ti₅ alloys

Dawei Xing^*
, Jianfei Sun
, Jun Shen
, Gang Wang
, Ming Yan

^*Corresponding author for this work

Harbin Institute of Technology

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

25 Scopus citations

Abstract

The relative glass forming ability (GFA) of bulk amorphous Zr ₆₀Cu₂₀Ni₈Al₇Hf₃Ti ₂ (A₁) and Zr_52.5Cu_17.9Ni _14.6Al₁₀Ti₅ (Vit105) alloys has been investigated by comparing the maximum thickness of amorphous region of wedge-shaped samples, as well as the evaluated critical cooling rates using differential thermal analysis (DTA). The results show that the maximum thickness of amorphous region of wedge-shaped samples are d_m = 2mm for A ₁, d_m = 3.5mm for Vit105, and the evaluated critical cooling rates are R_c = 33.5 and 4.5K/s for A₁ and Vit105, respectively. It is suggested that the glass forming ability of A₁ is smaller than that of well known Vit105 alloy, though A₁ has the significant supercooled liquid region of over 140K. Therefore, it is concluded that a large supercooled liquid region ΔT_x does not necessarily mean good glass forming ability of an amorphous alloy.

Original language	English
Pages (from-to)	239-242
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	375
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2003.11.155
State	Published - 28 Jul 2004
Externally published	Yes

Keywords

Amorphous materials
Calorimetry
Thermal analysis

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10.1016/j.jallcom.2003.11.155

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title = "The relations between ΔTx and the glass forming ability of bulk amorphous Zr-Cu-Ni-Al-Hf-Ti and Zr52.5Cu17.9Ni 14.6Al10Ti5 alloys",

abstract = "The relative glass forming ability (GFA) of bulk amorphous Zr 60Cu20Ni8Al7Hf3Ti 2 (A1) and Zr52.5Cu17.9Ni 14.6Al10Ti5 (Vit105) alloys has been investigated by comparing the maximum thickness of amorphous region of wedge-shaped samples, as well as the evaluated critical cooling rates using differential thermal analysis (DTA). The results show that the maximum thickness of amorphous region of wedge-shaped samples are dm = 2mm for A 1, dm = 3.5mm for Vit105, and the evaluated critical cooling rates are Rc = 33.5 and 4.5K/s for A1 and Vit105, respectively. It is suggested that the glass forming ability of A1 is smaller than that of well known Vit105 alloy, though A1 has the significant supercooled liquid region of over 140K. Therefore, it is concluded that a large supercooled liquid region ΔTx does not necessarily mean good glass forming ability of an amorphous alloy.",

keywords = "Amorphous materials, Calorimetry, Thermal analysis",

author = "Dawei Xing and Jianfei Sun and Jun Shen and Gang Wang and Ming Yan",

year = "2004",

month = jul,

day = "28",

doi = "10.1016/j.jallcom.2003.11.155",

language = "英语",

volume = "375",

pages = "239--242",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

number = "1-2",

}

TY - JOUR

T1 - The relations between ΔTx and the glass forming ability of bulk amorphous Zr-Cu-Ni-Al-Hf-Ti and Zr52.5Cu17.9Ni 14.6Al10Ti5 alloys

AU - Xing, Dawei

AU - Sun, Jianfei

AU - Shen, Jun

AU - Wang, Gang

AU - Yan, Ming

PY - 2004/7/28

Y1 - 2004/7/28

N2 - The relative glass forming ability (GFA) of bulk amorphous Zr 60Cu20Ni8Al7Hf3Ti 2 (A1) and Zr52.5Cu17.9Ni 14.6Al10Ti5 (Vit105) alloys has been investigated by comparing the maximum thickness of amorphous region of wedge-shaped samples, as well as the evaluated critical cooling rates using differential thermal analysis (DTA). The results show that the maximum thickness of amorphous region of wedge-shaped samples are dm = 2mm for A 1, dm = 3.5mm for Vit105, and the evaluated critical cooling rates are Rc = 33.5 and 4.5K/s for A1 and Vit105, respectively. It is suggested that the glass forming ability of A1 is smaller than that of well known Vit105 alloy, though A1 has the significant supercooled liquid region of over 140K. Therefore, it is concluded that a large supercooled liquid region ΔTx does not necessarily mean good glass forming ability of an amorphous alloy.

AB - The relative glass forming ability (GFA) of bulk amorphous Zr 60Cu20Ni8Al7Hf3Ti 2 (A1) and Zr52.5Cu17.9Ni 14.6Al10Ti5 (Vit105) alloys has been investigated by comparing the maximum thickness of amorphous region of wedge-shaped samples, as well as the evaluated critical cooling rates using differential thermal analysis (DTA). The results show that the maximum thickness of amorphous region of wedge-shaped samples are dm = 2mm for A 1, dm = 3.5mm for Vit105, and the evaluated critical cooling rates are Rc = 33.5 and 4.5K/s for A1 and Vit105, respectively. It is suggested that the glass forming ability of A1 is smaller than that of well known Vit105 alloy, though A1 has the significant supercooled liquid region of over 140K. Therefore, it is concluded that a large supercooled liquid region ΔTx does not necessarily mean good glass forming ability of an amorphous alloy.

KW - Amorphous materials

KW - Calorimetry

KW - Thermal analysis

UR - https://www.scopus.com/pages/publications/2942730039

U2 - 10.1016/j.jallcom.2003.11.155

DO - 10.1016/j.jallcom.2003.11.155

M3 - 文章

AN - SCOPUS:2942730039

SN - 0925-8388

VL - 375

SP - 239

EP - 242

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

The relations between ΔT_x and the glass forming ability of bulk amorphous Zr-Cu-Ni-Al-Hf-Ti and Zr_52.5Cu_17.9Ni _14.6Al₁₀Ti₅ alloys

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Keywords

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