Dynamic fragmentation of a Zr-based metallic glass under various impact velocities

Wang, Chuan Ting; He, Yong; Ji, Cheng; He, Yuehui; Guo, Liu; Meng, Yuanpei

doi:10.1007/s10853-020-05495-5

Cited by 12 publications

(5 citation statements)

References 37 publications

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“…Grady D. E. et al [2] obtained the estimation formula of this parameter based on the energy balance theory, and found that the mass distribution of debris based on this parameter is applicable to most brittle materials. Wang C. T. et al [3] found that the fitting mass distribution of zirconium based amorphous alloy were very consistent with the experiment. However, few researches on the dynamic fragmentation of W-Zr alloys and its mass distribution were reported.…”

Section: Introductionsupporting

confidence: 67%

“…In order to study the properties of W-Zr alloy, specimens with 25% and 50% tungsten content were prepared, with the densities of 7.8 g/cm 3 and 9.7 g/cm 3 , respectively. The metallography of the two alloys was observed under scanning electron microscope (JSM-IT500HR).…”

Section: Experimental Materials and Proceduresmentioning

confidence: 99%

“…After impact test, the debris of fragments were collected carefully and weighted. Details of the impact test was reported earlier [3].…”

Section: Experimental Materials and Proceduresmentioning

confidence: 99%

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Constitutive Model and Impact Induced Fragmentation of W-Zr Alloy

Yang,

Wang,

Yang

et al. 2023

SSP

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In this paper, two types of W-Zr alloy with different proportions were prepared. The dynamic and quasi-static compression mechanical properties of Zr-25%W alloy and Zr-50%W alloy at various strain rates were obtained. The results showed that the tungsten component could improve the mechanical strength of the alloy, while the zirconium component could significantly improve the plasticity of the alloy. The JC constitutive models of two types of W-Zr alloys and the KHL constitutive model of Zr-25%W alloy were proposed. The fitting parameters of JC model and KHL model were determined by the dynamic and quad-static compression tests. Dynamic impact tests of two types of W-Zr alloys were carried out in argon atmosphere at various velocities. The power law distribution theory for brittle materials could also describe the high-speed impact of W-Zr alloy.

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Section: Introductionsupporting

confidence: 67%

Section: Experimental Materials and Proceduresmentioning

confidence: 99%

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Constitutive Model and Impact Induced Fragmentation of W-Zr Alloy

Yang,

Wang,

Yang

et al. 2023

SSP

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“…Besides plasticity, the practical applications of BMGs are also limited by their poor GFA. Moreover, current energy research has mainly focused on the classic components Zr55Ni5Al10Cu30 and Zr41.25Ti13.75Cu12.5Ni10Be22.5 [7,[10][11][12][13], and more BMG systems that simultaneously meet the dimensional, mechanical, and energy requirements are required.…”

Section: Introductionmentioning

confidence: 99%

Glass-Forming Ability, Mechanical Properties, and Energetic Characteristics of ZrCuNiAlNbHfY Bulk Metallic Glasses

Yu,

Li,

Zhang

et al. 2024

Materials

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The effects of partially substituting Al for Cu in Zr59.62Cu18.4-xNi12Al6+xNb3Hf0.78Y0.2 (x = 0, 2, 4, 6, 8 at.%) bulk metallic glasses (BMGs) on their glass-forming ability (GFA), quasi-static and dynamic mechanical properties, and energy characteristics were investigated. The results showed that an appropriate substitution of Al for Cu can improve GFA and reach a critical casting size up to 10 mm. Additionally, with Al replacement of Cu, the change in the distribution and content of free volume inside the BMGs was the main reason for the quasi-static compression plasticity. In contrast, the BMGs exhibited no plasticity during dynamic compression and high-speed impact, owing to the short loading time and thermal softening effect. In terms of energy characteristics, all alloys have a high combustion enthalpy. And on the surface of the fragments collected from impact, the active elements Zr, Al, and Nb reacted because of the adiabatic temperature rise. Further, x = 4 at.% Zr-based BMG with its superior overall performance could penetrate a 6 mm Q235 plate at a speed of 1038 m/s, combining excellent mechanical properties and energy characteristics. This study contributes to the development of Zr-based BMGs as novel energetic structural materials.

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“…Compared with traditional energetic materials, metal/PTFE RMs have high energy density and remain inert under normal conditions [ 1 ]. When reactive fragments hit the target, a violent redox reaction occurs under the action of high-velocity impact, releasing a large amount of chemical energy and even deflagration or explosion, which can cause multiple damages to the target [ 2 , 3 ].…”

Section: Introductionmentioning

confidence: 99%

Compressive Mechanical Properties and Shock-Induced Reaction Behavior of Zr/PTFE and Ti/PTFE Reactive Materials

Zhang

et al. 2022

Materials

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Existing research on PTFE-based reactive materials (RMs) mostly focuses on Al/PTFE RMs. To explore further possibilities of formulation, the reactive metal components in the RMs can be replaced. In this paper, Zr/PTFE and Ti/PTFE RMs were prepared by cold isostatic pressing and vacuum sintering. The static and dynamic compressive mechanical properties of Zr/PTFE and Ti/PTFE RMs were investigated at different strain rates. The results show that the introduction of zirconium powder and titanium powder can increase the strength of the material under dynamic loading. Meanwhile, a modified J-C model considering strain and strain rate coupling was proposed. The parameters of the modified J-C model of Zr/PTFE and Ti/PTFE RMs were determined, which can describe and predict plastic flow stress. To characterize the impact-induced reaction behavior of Zr/PTFE and Ti/PTFE RMs, a quasi-sealed test chamber was used to measure the over-pressure induced by the exothermic reaction. The energy release characteristics of both materials were more intense under the higher impact.

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Dynamic fragmentation of a Zr-based metallic glass under various impact velocities

Cited by 12 publications

References 37 publications

Constitutive Model and Impact Induced Fragmentation of W-Zr Alloy

Constitutive Model and Impact Induced Fragmentation of W-Zr Alloy

Glass-Forming Ability, Mechanical Properties, and Energetic Characteristics of ZrCuNiAlNbHfY Bulk Metallic Glasses

Compressive Mechanical Properties and Shock-Induced Reaction Behavior of Zr/PTFE and Ti/PTFE Reactive Materials

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