Shear softening of Ta-containing metallic glass matrix composites upon dynamic loading

Tang, Yao; Wu, R.F.; Jiao, Zhiming; Shi, Xiaohui; Wang, Zhi Hua; Qiao, J.W.

doi:10.1016/j.msea.2017.08.046

Cited by 11 publications

(3 citation statements)

References 52 publications

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“…Despite of this, some deductions can be made based on the abnormal initiation of ASBs during deformations at 873 K with a relatively low strain level. It is noted that microstructural characteristics affect the susceptibility of alloys to adiabatic shearing 43 . According to the perturbation theory proposed by Duffy et al .…”

Section: Discussionmentioning

confidence: 99%

Precipitation of string-shaped morphologies consisting of aligned α phase in a metastable β titanium alloy

Zhan

Ceguerra

Wang

et al. 2018

Sci Rep

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String-shaped morphologies consisting of preferentially aligned lath-shaped α precipitates were observed in the metastable β Ti-6Cr-5Mo-5V-4Al alloy after deformations at high strain rates and elevated temperatures. The morphology and 3-dimentional arrangement of this feature have been elaborated based on the characterizations via a combination of transmission electron microscopy, transmission kikuchi diffraction and atom probe tomography. The 2D projected morphology of the coalescent α laths observed in the etched samples by SEM depends on the metallographic section. All the microstructural observations indicate that dislocation structures are most likely the nucleation sites for the aligned α laths. In addition, an appropriate testing temperature, which can ensure a relatively high diffusion rate of solutes without inducing strong recovery of dislocation structures, is necessary for the occurrence of the string-shaped morphologies.

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Section: Discussionmentioning

confidence: 99%

Precipitation of string-shaped morphologies consisting of aligned α phase in a metastable β titanium alloy

Zhan

Ceguerra

Wang

et al. 2018

Sci Rep

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“…Having witnessed a rapidly development, composite materials are widely used in erospace, automotive, electrical, construction, and other fields (Ameri, Moradi and Talebitooti, 2020;Wanchoo et al, 2021). Active research on the dynamic behavior of composite materials includes rate dependence of mechanical properties (Wang et al, 2021), constitutive models (Zhan et al, 2021), damage evolution such as shear softening upon dynamic loading (Tang et al, 2017), and etc.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Anomalous Dynamic Responses of Fiber Metal Laminates Under Pulse Loading

Zhai¹,

Zhu

Mao³

et al. 2021

Front. Mater.

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Composed of metallic layers and composite plies, fiber metal laminates (FMLs) combine inherent advantages of metals and composites. The phenomenon of anomalous response behavior, in which the permanent deformation is in the opposite direction to the incoming pressure wave, has been discovered in dynamic responses of monolithic plate subjected to impulsive loading. In this study, dynamic responses of FML plates of various configurations are examined and compared against the responses of a monolithic plate using finite element analysis. It is found that under the load condition in which an anomalous dynamic behavior of an aluminum plate is observed, FMLs oscillate a few cycles before resting on permanent deformation, and the laminate thickness strongly affects the final deflection, which could be in the counter-intuitive direction or near the initial position of zero deflection depending on configuration and specification of FMLs. In addition, interaction of damage accumulation with deflection responses is investigated. The findings of this study can be useful for optimal design of FMLs intended for usage under extreme loadings.

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“…At present, the most effective secondary phase in BMGMCs mostly comprises plastic metals such as W, Mo, Fe, Nb, Ta, etc. [ 8 , 9 , 10 , 11 , 12 ]. However, these additives are generally heavy phases, and will therefore increase the density of the composite, which is not conducive to the lightweight development of composite materials.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Mechanical Behavior of Ex Situ Mg-Based Bulk Metallic Glass Matrix Composite Reinforced with Electroless Cu-Coated SiC Particles

Wang

Zhao

et al. 2017

Materials

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Magnesium-based bulk metallic glass matrix composites (BMGMCs) have better plasticity than the corresponding bulk metallic glasses (BMGs); however, their strength and density are often compromised due to the fact that the effective reinforcement phase is mostly plastic heavy metal. For lightweight SiC-particle reinforced BMGMCs, interface wettability and the sharpness of the particles often reduce the strengthening effect. In this work, SiC particles were coated with a thin Cu coating by electroless plating, and added to Mg54Cu26.5Ag8.5Gd11 melt in an amount of 5 wt % to prepare a BMGMC. The microstructure of the interface, mechanical behavior and fracture morphology of the BMGMC were studied by scanning electron microscopy and quasi-static compression testing. The results showed that the Cu coating improved the wettability between SiC and the matrix alloy without obvious interfacial reactions, leading to the dispersion of SiC particles in the matrix. The addition of Cu-coated SiC particles improved the plastic deformation ability of Mg54Cu26.5Ag8.5Gd11 BMG, proving that electroless plating was an effective method for controlling the interface microstructure and mechanical behavior of BMGMCs.

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Shear softening of Ta-containing metallic glass matrix composites upon dynamic loading

Cited by 11 publications

References 52 publications

Precipitation of string-shaped morphologies consisting of aligned α phase in a metastable β titanium alloy

Precipitation of string-shaped morphologies consisting of aligned α phase in a metastable β titanium alloy

Analysis of Anomalous Dynamic Responses of Fiber Metal Laminates Under Pulse Loading

Fabrication and Mechanical Behavior of Ex Situ Mg-Based Bulk Metallic Glass Matrix Composite Reinforced with Electroless Cu-Coated SiC Particles

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