Synthesis and characteristics of 80vol.% tungsten (W) fibre/Zr based metallic glass composite

Zhang, H. F.; Li, H.; Wang, A. M.; Fu, Huameng; Ding, B.Z.; Hu, Z. Q.

doi:10.1016/j.intermet.2009.05.011

Cited by 68 publications

(24 citation statements)

References 30 publications

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“…This composite demonstrates considerable plasticity under both quasi-static and dynamic compression Qiu et al, 2002;Wang et al, 2006;Hou et al, 2007;Wang et al, 2007;Zhang et al, 2009). Furthermore, under high speed impact, this composite exhibits ''self-sharpening'' behavior, resulting in a 10-20% improvement in penetrator efficiency over the traditional tungsten heavy alloy (Conner et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

“…From the experimental observations, two major micro-damages are observed for this composite. One is shear banding, the other is splitting Qiu et al, 2002;Zhang et al, 2009). It was proposed by Grady (1992), Grady (1994), Jiang and Dai (2011) that the resistance of materials to shear band propagation can be measured by the critical plastic energy dissipated in the shear band, which is affected by the strain rate.…”

Section: Introductionmentioning

confidence: 99%

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On the compressive failure of tungsten fiber reinforced Zr-based bulk metallic glass composite

Chen

Jiang

et al. 2015

International Journal of Solids and Structures

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a b s t r a c tIn this paper, a combination of experimentation and analysis is used to identify and study the mechanisms that govern the failure of tungsten fiber reinforced Zr 41.2 Ti 13.8 Cu 10 Ni 12.5 Be 22.5 bulk metallic glass composite. In the experimental part, quasi-static and dynamic compressive behaviors of this composite with various fiber volume fractions were systematically investigated. For this composite under uniaxial compression, both the microstructure and strain rate are found to affect the compressive failure behavior. With the increasing fiber volume fraction, or with the decreasing strain rate, the failure mode of the composite switches from shear to splitting. Motivated by the experimental findings, an energy competition mechanism is proposed to unveil these fundamental behaviors of the tungsten fiber reinforced bulk metallic glass composite. The critical energy dissipations for shear banding and splitting of the composite are derived as the functions of tungsten fiber volume fraction and strain rate. It is found that the failure behavior of the composite is decided by the energy competition between shear banding and splitting.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

On the compressive failure of tungsten fiber reinforced Zr-based bulk metallic glass composite

Chen

Jiang

et al. 2015

International Journal of Solids and Structures

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“…[30][31][32][33][34][35][36][37][38][39][40][41][42] This composite has considerable plasticity under both quasi-static and dynamic compression. [30,[32][33][34][35][36][37][38]40] In addition, due to its self-sharpening behavior under high speed impact, this composite penetrator has approximately a 10 to 20 pct improvement in penetration efficiency over the traditional tungsten heavy alloys. [31] This unique property promotes the tungsten fiber reinforced Zr-based BMG matrix composite to be applied effectively to defense industry.…”

Section: Introductionmentioning

confidence: 99%

“…[31,41] Many previous studies had focused on the macroscopic properties of this composite. [30][31][32][33][34][35][36][37][38][39][40][41][42] Conner et al [30] studied the quasi-static tensile and compressive properties of tungsten fiber reinforced Zr 41.25 Ti 13.75-Cu 12.5 Ni 10 Be 22.5 metallic glass matrix composite. It was found that the compressive failure mode for this composite changes from the shear banding to localized fiber buckling and tilting as fiber volume fraction increases.…”

Section: Introductionmentioning

confidence: 99%

Direct Observation on the Evolution of Shear Banding and Buckling in Tungsten Fiber Reinforced Zr-Based Bulk Metallic Glass Composite

Chen

Jiang

et al. 2014

Metall Mater Trans A

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The evolution of micro-damage and deformation of each phase in the composite plays a pivotal role in the clarification of deformation mechanism of composite. However, limited model and mechanical experiments were conducted to reveal the evolution of the deformation of the two phases in the tungsten fiber reinforced Zr-based bulk metallic glass composite. In this study, quasi-static compressive tests were performed on this composite. For the first time, the evolution of micro-damage and deformation of the two phases in this composite, i.e., shear banding of the metallic glass matrix and buckling deformation of the tungsten fiber, were investigated systematically by controlling the loading process at different degrees of deformation. It is found that under uniaxial compression, buckling of the tungsten fiber occurs first, while the metallic glass matrix deforms homogeneously. Upon further loading, shear bands initiate from the fiber/ matrix interface and propagate in the metallic glass matrix. Finally, the composite fractures in a mixed mode, with splitting in the tungsten fiber, along with shear fracture in the metallic glass matrix. Through the analysis on the stress state in the composite and resistance to shear banding of the two phases during compressive deformation, the possible deformation mechanism of the composite is unveiled. The deformation map of the composite, which covers from elastic deformation to final fracture, is obtained as well.

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“…Sun et al [17] reported a porous Ti/Mg-based metallic glass composite that had a compressive strength of 1783 MPa and a fracture strain of 31%. Xue et al [18] reported that the Zr-based BMG composite that was reinforced with porous tungsten exhibited a fracture strain of 80% during axial compression at room temperature, which was considerably greater than the tungsten wire reinforced Zr-based metallic glass composite that contained an equal volume of tungsten [19].…”

Section: Introductionmentioning

confidence: 99%

Effect of the metallic glass volume fraction on the mechanical properties of Zr-based metallic glass reinforced with porous W composite

Zhang

Wang

Xue

et al. 2013

Materials Science and Engineering: A

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Synthesis and characteristics of 80vol.% tungsten (W) fibre/Zr based metallic glass composite

Cited by 68 publications

References 30 publications

On the compressive failure of tungsten fiber reinforced Zr-based bulk metallic glass composite

On the compressive failure of tungsten fiber reinforced Zr-based bulk metallic glass composite

Direct Observation on the Evolution of Shear Banding and Buckling in Tungsten Fiber Reinforced Zr-Based Bulk Metallic Glass Composite

Effect of the metallic glass volume fraction on the mechanical properties of Zr-based metallic glass reinforced with porous W composite

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