The dynamic mechanical characteristics of Zr-based bulk metallic glasses and composites

G. J. Lyu; J. C. Qiao; J. M. Pelletier; Y. Yao

doi:10.1016/j.msea.2017.11.057

The dynamic mechanical characteristics of Zr-based bulk metallic glasses and composites

G. J. Lyu, J. C. Qiao, J. M. Pelletier, Y. Yao

School of Mechanics,Civil Engineering and Architecture

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

16 Scopus citations

Abstract

In the current study, Zr-based metallic glass matrix composites (MGMCs) were prepared by doping high-melting point of tantalum powders and investigated by dynamic mechanical analysis. The results suggest that the relaxation processes are changed by modifying the chemical composition. The influence of crystalline phase on the dynamic mechanical response of Zr-based MGMC has been analyzed. The master curves of loss modulus can be well fitted by the Kholrausch-Williams-Watts (KWW) model, decreasing of the parameter β_KWW implies that the Zr-based MGMC doped with more tantalum powders has higher dynamic heterogeneity. To better understand the dynamic mechanical properties of the MGMCs, quasi-point defects (QPD) theory is adopted, the kinetic characteristics of glass transition of Zr-based MGMCs are analyzed in a quantitative manner. The experimental results provide an insightful information on the complex structural relaxation of the metallic glass matrix composite.

Original language	English
Pages (from-to)	356-363
Number of pages	8
Journal	Materials Science and Engineering: A
Volume	711
DOIs	https://doi.org/10.1016/j.msea.2017.11.057
State	Published - 10 Jan 2018

Keywords

Dynamic heterogeneity
Mechanical spectroscopy
Metallic glasses matrix composite
Physical model
Quasi-point defect theory

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10.1016/j.msea.2017.11.057

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title = "The dynamic mechanical characteristics of Zr-based bulk metallic glasses and composites",

abstract = "In the current study, Zr-based metallic glass matrix composites (MGMCs) were prepared by doping high-melting point of tantalum powders and investigated by dynamic mechanical analysis. The results suggest that the relaxation processes are changed by modifying the chemical composition. The influence of crystalline phase on the dynamic mechanical response of Zr-based MGMC has been analyzed. The master curves of loss modulus can be well fitted by the Kholrausch-Williams-Watts (KWW) model, decreasing of the parameter βKWW implies that the Zr-based MGMC doped with more tantalum powders has higher dynamic heterogeneity. To better understand the dynamic mechanical properties of the MGMCs, quasi-point defects (QPD) theory is adopted, the kinetic characteristics of glass transition of Zr-based MGMCs are analyzed in a quantitative manner. The experimental results provide an insightful information on the complex structural relaxation of the metallic glass matrix composite.",

keywords = "Dynamic heterogeneity, Mechanical spectroscopy, Metallic glasses matrix composite, Physical model, Quasi-point defect theory",

author = "Lyu, {G. J.} and Qiao, {J. C.} and Pelletier, {J. M.} and Y. Yao",

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doi = "10.1016/j.msea.2017.11.057",

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T1 - The dynamic mechanical characteristics of Zr-based bulk metallic glasses and composites

AU - Lyu, G. J.

AU - Qiao, J. C.

AU - Pelletier, J. M.

AU - Yao, Y.

PY - 2018/1/10

Y1 - 2018/1/10

N2 - In the current study, Zr-based metallic glass matrix composites (MGMCs) were prepared by doping high-melting point of tantalum powders and investigated by dynamic mechanical analysis. The results suggest that the relaxation processes are changed by modifying the chemical composition. The influence of crystalline phase on the dynamic mechanical response of Zr-based MGMC has been analyzed. The master curves of loss modulus can be well fitted by the Kholrausch-Williams-Watts (KWW) model, decreasing of the parameter βKWW implies that the Zr-based MGMC doped with more tantalum powders has higher dynamic heterogeneity. To better understand the dynamic mechanical properties of the MGMCs, quasi-point defects (QPD) theory is adopted, the kinetic characteristics of glass transition of Zr-based MGMCs are analyzed in a quantitative manner. The experimental results provide an insightful information on the complex structural relaxation of the metallic glass matrix composite.

AB - In the current study, Zr-based metallic glass matrix composites (MGMCs) were prepared by doping high-melting point of tantalum powders and investigated by dynamic mechanical analysis. The results suggest that the relaxation processes are changed by modifying the chemical composition. The influence of crystalline phase on the dynamic mechanical response of Zr-based MGMC has been analyzed. The master curves of loss modulus can be well fitted by the Kholrausch-Williams-Watts (KWW) model, decreasing of the parameter βKWW implies that the Zr-based MGMC doped with more tantalum powders has higher dynamic heterogeneity. To better understand the dynamic mechanical properties of the MGMCs, quasi-point defects (QPD) theory is adopted, the kinetic characteristics of glass transition of Zr-based MGMCs are analyzed in a quantitative manner. The experimental results provide an insightful information on the complex structural relaxation of the metallic glass matrix composite.

KW - Dynamic heterogeneity

KW - Mechanical spectroscopy

KW - Metallic glasses matrix composite

KW - Physical model

KW - Quasi-point defect theory

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DO - 10.1016/j.msea.2017.11.057

M3 - 文章

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VL - 711

SP - 356

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JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

The dynamic mechanical characteristics of Zr-based bulk metallic glasses and composites

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Keywords

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