On the new criterion to assess the glass-forming ability of metallic alloys

Zhilin Long; Guoqiang Xie; Hongqing Wei; Xuping Su; Jian Peng; Ping Zhang; Akihisa Inoue

doi:10.1016/j.msea.2009.01.063

On the new criterion to assess the glass-forming ability of metallic alloys

Zhilin Long, Guoqiang Xie, Hongqing Wei, Xuping Su, Jian Peng, Ping Zhang, Akihisa Inoue

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

55 Citations (Scopus)

Abstract

Based on the analysis of time-temperature-transformation (TTT) diagrams of glass-forming liquids using the fragility concept, a dimensionless criterion ω, expressed by T_g/T_x - 2T_g/(T_g + T_l) (T_g the glass transition temperature, T_x the onset crystallization temperature and T_l the liquidus temperature), is proposed for quickly evaluating the glass-forming ability (GFA) of metallic glasses. From the available experimental data reported in the literature, the criterion ω exhibits the strongest correlation with the critical cooling rate R_c for glass formation among all currently available GFA indicators, including T_rg(=T_g/T_l), ΔT_x(=T_x - T_g), ΔT_rg(=(T_x - T_g)/(T_l - T_g)), δ(=T_x/(T_l - T_g)), γ(=T_x/(T_g + T_l)), γ_m(=(2T_x - T_g)/T_l), φ(=T_rg(ΔT_x/T_g)^0.143), α(=T_x/T_l), β(=T_x/T_g + T_g/T_l), β(=T_x × T_g/(T_l - T_x)²) and ζ(=T_g/T_l + ΔT_x/T_x). An empirical equation is induced to elucidate the R_c in different metallic alloys based on the measured ω value of the corresponding alloy. It is also demonstrated that this ω criterion has a strong ability to measure or/and predict the GFA of cryoprotectants and oxide glasses, especially in the case of cryoprotectants.

Original language	English
Pages (from-to)	23-30
Number of pages	8
Journal	Materials Science and Engineering A
Volume	509
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2009.01.063
Publication status	Published - 2009 May 25

Keywords

Criterion
Glass-forming ability
Metallic glasses
Thermal analysis

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.msea.2009.01.063

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@article{e5e5cb84529849fd8a56b3cbccb001e6,

title = "On the new criterion to assess the glass-forming ability of metallic alloys",

abstract = "Based on the analysis of time-temperature-transformation (TTT) diagrams of glass-forming liquids using the fragility concept, a dimensionless criterion ω, expressed by Tg/Tx - 2Tg/(Tg + Tl) (Tg the glass transition temperature, Tx the onset crystallization temperature and Tl the liquidus temperature), is proposed for quickly evaluating the glass-forming ability (GFA) of metallic glasses. From the available experimental data reported in the literature, the criterion ω exhibits the strongest correlation with the critical cooling rate Rc for glass formation among all currently available GFA indicators, including Trg(=Tg/Tl), ΔTx(=Tx - Tg), ΔTrg(=(Tx - Tg)/(Tl - Tg)), δ(=Tx/(Tl - Tg)), γ(=Tx/(Tg + Tl)), γm(=(2Tx - Tg)/Tl), φ(=Trg(ΔTx/Tg)0.143), α(=Tx/Tl), β(=Tx/Tg + Tg/Tl), β(=Tx × Tg/(Tl - Tx)2) and ζ(=Tg/Tl + ΔTx/Tx). An empirical equation is induced to elucidate the Rc in different metallic alloys based on the measured ω value of the corresponding alloy. It is also demonstrated that this ω criterion has a strong ability to measure or/and predict the GFA of cryoprotectants and oxide glasses, especially in the case of cryoprotectants.",

keywords = "Criterion, Glass-forming ability, Metallic glasses, Thermal analysis",

author = "Zhilin Long and Guoqiang Xie and Hongqing Wei and Xuping Su and Jian Peng and Ping Zhang and Akihisa Inoue",

note = "Funding Information: This work was supported by the Planned Science and Technology Project of Hunan Province (No. 2008FJ3095) and National Natural Science Foundation of China (Nos. 50671088, 50771089).",

year = "2009",

month = may,

day = "25",

doi = "10.1016/j.msea.2009.01.063",

language = "English",

volume = "509",

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T1 - On the new criterion to assess the glass-forming ability of metallic alloys

AU - Long, Zhilin

AU - Xie, Guoqiang

AU - Wei, Hongqing

AU - Su, Xuping

AU - Peng, Jian

AU - Zhang, Ping

AU - Inoue, Akihisa

N1 - Funding Information: This work was supported by the Planned Science and Technology Project of Hunan Province (No. 2008FJ3095) and National Natural Science Foundation of China (Nos. 50671088, 50771089).

PY - 2009/5/25

Y1 - 2009/5/25

N2 - Based on the analysis of time-temperature-transformation (TTT) diagrams of glass-forming liquids using the fragility concept, a dimensionless criterion ω, expressed by Tg/Tx - 2Tg/(Tg + Tl) (Tg the glass transition temperature, Tx the onset crystallization temperature and Tl the liquidus temperature), is proposed for quickly evaluating the glass-forming ability (GFA) of metallic glasses. From the available experimental data reported in the literature, the criterion ω exhibits the strongest correlation with the critical cooling rate Rc for glass formation among all currently available GFA indicators, including Trg(=Tg/Tl), ΔTx(=Tx - Tg), ΔTrg(=(Tx - Tg)/(Tl - Tg)), δ(=Tx/(Tl - Tg)), γ(=Tx/(Tg + Tl)), γm(=(2Tx - Tg)/Tl), φ(=Trg(ΔTx/Tg)0.143), α(=Tx/Tl), β(=Tx/Tg + Tg/Tl), β(=Tx × Tg/(Tl - Tx)2) and ζ(=Tg/Tl + ΔTx/Tx). An empirical equation is induced to elucidate the Rc in different metallic alloys based on the measured ω value of the corresponding alloy. It is also demonstrated that this ω criterion has a strong ability to measure or/and predict the GFA of cryoprotectants and oxide glasses, especially in the case of cryoprotectants.

AB - Based on the analysis of time-temperature-transformation (TTT) diagrams of glass-forming liquids using the fragility concept, a dimensionless criterion ω, expressed by Tg/Tx - 2Tg/(Tg + Tl) (Tg the glass transition temperature, Tx the onset crystallization temperature and Tl the liquidus temperature), is proposed for quickly evaluating the glass-forming ability (GFA) of metallic glasses. From the available experimental data reported in the literature, the criterion ω exhibits the strongest correlation with the critical cooling rate Rc for glass formation among all currently available GFA indicators, including Trg(=Tg/Tl), ΔTx(=Tx - Tg), ΔTrg(=(Tx - Tg)/(Tl - Tg)), δ(=Tx/(Tl - Tg)), γ(=Tx/(Tg + Tl)), γm(=(2Tx - Tg)/Tl), φ(=Trg(ΔTx/Tg)0.143), α(=Tx/Tl), β(=Tx/Tg + Tg/Tl), β(=Tx × Tg/(Tl - Tx)2) and ζ(=Tg/Tl + ΔTx/Tx). An empirical equation is induced to elucidate the Rc in different metallic alloys based on the measured ω value of the corresponding alloy. It is also demonstrated that this ω criterion has a strong ability to measure or/and predict the GFA of cryoprotectants and oxide glasses, especially in the case of cryoprotectants.

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KW - Glass-forming ability

KW - Metallic glasses

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JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

SN - 0921-5093

IS - 1-2

ER -

On the new criterion to assess the glass-forming ability of metallic alloys

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Keywords

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