Crystallization kinetics of the Ni-based bulk metallic glass

Fengxiang Qin; Haifeng Zhang; Peng Chen; Hong Li; Zhuangqi Hu

Crystallization kinetics of the Ni-based bulk metallic glass

Fengxiang Qin, Haifeng Zhang, Peng Chen, Hong Li, Zhuangqi Hu

Institute for Materials Research (IMR)

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

3 Citations (Scopus)

Abstract

The crystallization kinetics of the Ni₄₅Ti₂₃ Zr₁₅Si₅Pd₁₂ alloy has been investigated by DSC and XRD. The process of crystallization is multi-stage proceeding. The isothermal activation energy obtained from Arrhenius equation increases with the process of crystallization. Based on the JMA equation, the average Avrami exponent for the main crystallization process is larger than 3.0, indicating the crystallization to be a three-dimensional nucleation and growth. The large atomic size difference and negative heats of mixing increase the thermal stability of the Ni-based amorphous alloy.

Original language	English
Pages (from-to)	1285-1289
Number of pages	5
Journal	Jinshu Xuebao/Acta Metallurgica Sinica
Volume	40
Issue number	12
Publication status	Published - 2004 Dec

Keywords

Crystallization activation energy
Crystallization kinetics
Ni-based bulk metallic glass

ASJC Scopus subject areas

Geotechnical Engineering and Engineering Geology
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

Cite this

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abstract = "The crystallization kinetics of the Ni45Ti23 Zr15Si5Pd12 alloy has been investigated by DSC and XRD. The process of crystallization is multi-stage proceeding. The isothermal activation energy obtained from Arrhenius equation increases with the process of crystallization. Based on the JMA equation, the average Avrami exponent for the main crystallization process is larger than 3.0, indicating the crystallization to be a three-dimensional nucleation and growth. The large atomic size difference and negative heats of mixing increase the thermal stability of the Ni-based amorphous alloy.",

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author = "Fengxiang Qin and Haifeng Zhang and Peng Chen and Hong Li and Zhuangqi Hu",

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T1 - Crystallization kinetics of the Ni-based bulk metallic glass

AU - Qin, Fengxiang

AU - Zhang, Haifeng

AU - Chen, Peng

AU - Li, Hong

AU - Hu, Zhuangqi

PY - 2004/12

Y1 - 2004/12

N2 - The crystallization kinetics of the Ni45Ti23 Zr15Si5Pd12 alloy has been investigated by DSC and XRD. The process of crystallization is multi-stage proceeding. The isothermal activation energy obtained from Arrhenius equation increases with the process of crystallization. Based on the JMA equation, the average Avrami exponent for the main crystallization process is larger than 3.0, indicating the crystallization to be a three-dimensional nucleation and growth. The large atomic size difference and negative heats of mixing increase the thermal stability of the Ni-based amorphous alloy.

AB - The crystallization kinetics of the Ni45Ti23 Zr15Si5Pd12 alloy has been investigated by DSC and XRD. The process of crystallization is multi-stage proceeding. The isothermal activation energy obtained from Arrhenius equation increases with the process of crystallization. Based on the JMA equation, the average Avrami exponent for the main crystallization process is larger than 3.0, indicating the crystallization to be a three-dimensional nucleation and growth. The large atomic size difference and negative heats of mixing increase the thermal stability of the Ni-based amorphous alloy.

KW - Crystallization activation energy

KW - Crystallization kinetics

KW - Ni-based bulk metallic glass

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JF - Jinshu Xuebao/Acta Metallurgica Sinica

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IS - 12

ER -

Crystallization kinetics of the Ni-based bulk metallic glass

Abstract

Keywords

ASJC Scopus subject areas

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