Dynamic response and damage evolution of Zr-based bulk metallic glass under shock loading

Yan Li; Xingwang Cheng; Zhaolong Ma; Xuhai Li; Meng Wang

doi:10.1016/j.jmst.2021.03.052

Dynamic response and damage evolution of Zr-based bulk metallic glass under shock loading

Yan Li, Xingwang Cheng^*, Zhaolong Ma, Xuhai Li, Meng Wang

^*Corresponding author for this work

School of Material Science and Engineering

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

14 Citations (Scopus)

Abstract

Dynamic response and damage evolution of Zr₇₀Cu₁₃Ni_9.8Al_3.6Nb_3.4Y_0.2 bulk metallic glass (Zr-based BMG) under impact pressure ranging from 4.03 GPa to 27.22 GPa were studied. The Hugoniot Elastic Limit (HEL) and the spalling Strength (σ_sp) were measured as 7.09 GPa and 2.28 GPa, and the curve of impact velocity (D) and particle velocity (u) were also obtained. Under the strain rate of ~10⁵s⁻¹, local crystallization phenomenon was observed. As increasing the impact pressure, the failure mode of Zr-based BMG changed from spallation to fragmentation caused by the combination of spalling cracks and longitudinal cracks. Cone-cup structures were also observed in the internal spalling zone via nano-CT characterization. When increasing the impact pressure, the thickness of Zr-based BMG increased after impact and the remelting and cladding layers were also observed on the fracture surfaces. The fragments of the specimen were welded after impact due to the high temperature remelting, which causes plastic deformation of Zr-based BMG under shock loading.

Original language	English
Pages (from-to)	119-127
Number of pages	9
Journal	Journal of Materials Science and Technology
Volume	93
DOIs	https://doi.org/10.1016/j.jmst.2021.03.052
Publication status	Published - 10 Dec 2021

Keywords

Damage evolution
Dynamic response
Shock loading
Zr-based bulk metallic glass

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10.1016/j.jmst.2021.03.052

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title = "Dynamic response and damage evolution of Zr-based bulk metallic glass under shock loading",

abstract = "Dynamic response and damage evolution of Zr70Cu13Ni9.8Al3.6Nb3.4Y0.2 bulk metallic glass (Zr-based BMG) under impact pressure ranging from 4.03 GPa to 27.22 GPa were studied. The Hugoniot Elastic Limit (HEL) and the spalling Strength (σsp) were measured as 7.09 GPa and 2.28 GPa, and the curve of impact velocity (D) and particle velocity (u) were also obtained. Under the strain rate of ~105s−1, local crystallization phenomenon was observed. As increasing the impact pressure, the failure mode of Zr-based BMG changed from spallation to fragmentation caused by the combination of spalling cracks and longitudinal cracks. Cone-cup structures were also observed in the internal spalling zone via nano-CT characterization. When increasing the impact pressure, the thickness of Zr-based BMG increased after impact and the remelting and cladding layers were also observed on the fracture surfaces. The fragments of the specimen were welded after impact due to the high temperature remelting, which causes plastic deformation of Zr-based BMG under shock loading.",

keywords = "Damage evolution, Dynamic response, Shock loading, Zr-based bulk metallic glass",

author = "Yan Li and Xingwang Cheng and Zhaolong Ma and Xuhai Li and Meng Wang",

note = "Publisher Copyright: {\textcopyright} 2021",

year = "2021",

month = dec,

day = "10",

doi = "10.1016/j.jmst.2021.03.052",

language = "English",

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T1 - Dynamic response and damage evolution of Zr-based bulk metallic glass under shock loading

AU - Li, Yan

AU - Cheng, Xingwang

AU - Ma, Zhaolong

AU - Li, Xuhai

AU - Wang, Meng

PY - 2021/12/10

Y1 - 2021/12/10

N2 - Dynamic response and damage evolution of Zr70Cu13Ni9.8Al3.6Nb3.4Y0.2 bulk metallic glass (Zr-based BMG) under impact pressure ranging from 4.03 GPa to 27.22 GPa were studied. The Hugoniot Elastic Limit (HEL) and the spalling Strength (σsp) were measured as 7.09 GPa and 2.28 GPa, and the curve of impact velocity (D) and particle velocity (u) were also obtained. Under the strain rate of ~105s−1, local crystallization phenomenon was observed. As increasing the impact pressure, the failure mode of Zr-based BMG changed from spallation to fragmentation caused by the combination of spalling cracks and longitudinal cracks. Cone-cup structures were also observed in the internal spalling zone via nano-CT characterization. When increasing the impact pressure, the thickness of Zr-based BMG increased after impact and the remelting and cladding layers were also observed on the fracture surfaces. The fragments of the specimen were welded after impact due to the high temperature remelting, which causes plastic deformation of Zr-based BMG under shock loading.

AB - Dynamic response and damage evolution of Zr70Cu13Ni9.8Al3.6Nb3.4Y0.2 bulk metallic glass (Zr-based BMG) under impact pressure ranging from 4.03 GPa to 27.22 GPa were studied. The Hugoniot Elastic Limit (HEL) and the spalling Strength (σsp) were measured as 7.09 GPa and 2.28 GPa, and the curve of impact velocity (D) and particle velocity (u) were also obtained. Under the strain rate of ~105s−1, local crystallization phenomenon was observed. As increasing the impact pressure, the failure mode of Zr-based BMG changed from spallation to fragmentation caused by the combination of spalling cracks and longitudinal cracks. Cone-cup structures were also observed in the internal spalling zone via nano-CT characterization. When increasing the impact pressure, the thickness of Zr-based BMG increased after impact and the remelting and cladding layers were also observed on the fracture surfaces. The fragments of the specimen were welded after impact due to the high temperature remelting, which causes plastic deformation of Zr-based BMG under shock loading.

KW - Damage evolution

KW - Dynamic response

KW - Shock loading

KW - Zr-based bulk metallic glass

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Dynamic response and damage evolution of Zr-based bulk metallic glass under shock loading

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Keywords

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