Effect of Nb and Ta addition on mechanical properties of Zr-based bulk metallic glasses and composites

Long, Ziyun; Tao, Pengcheng; Wang, Guotai; Zhu, Kunsen; Chen, Yugan; Zhang, Weijian; Zhao, Zhihao; Yang, Yuanzheng; Huang, Zhenghua

doi:10.1016/j.jallcom.2022.165071

Cited by 16 publications

(3 citation statements)

References 36 publications

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“…The plasticity is revealed by the interaction between SBs and the competitive relationship between the patterned regions and smooth regions. The high density of shear bands and vein patterns generally reflects good plasticity [14,40,41]. As mentioned above, Al has a large negative ΔHi-j with other elements.…”

Section: Quasi-static and Dynamic Mechanical Properties Of Bmgsmentioning

confidence: 81%

“…According to recent reports, plasticity can be improved by employing nanocrystals, phase-separated structures, and the introduction of large amounts of free volume [14][15][16]. The first two strategies are typically limited to quasi-static compression, which can dramatically decrease strength and plasticity with an increasing strain rate [15,17].…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Quasi-static and Dynamic Mechanical Properties Of Bmgsmentioning

confidence: 81%

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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“…However, the inhomogeneous plastic deformation under the external loadings limits their applications in the industries [6,7]. In recent years, minor element addition has been one of the main methods for improving the homogenous plastic deformation and strength in the BMGs [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Minor Element Addition on the Structural Heterogeneity and Mechanical Properties of ZrCuAl Bulk Metallic Glasses

Sivaraman

Patra

Najm³

et al. 2022

Advances in Materials Science and Engineering

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The present study reveals the role of Nb and Ni minor addition on the nanomechanical properties and nanostructure of ZrCuAl bulk metallic glass (BMG). For this purpose, atomic force microscopy (AFM) was used to evaluate the viscoelastic response of the BMG surface at the nanoscale, while the nanoindentation technique was applied to show the mechanism of plastic deformation. The results indicated that minor Nb addition decreased the relaxation of enthalpy accompanied by the weakening of structural heterogeneity. On the other hand, Ni addition improved the stored energy of the material and intensified the distribution of loosely packed regions in the microstructure. Moreover, the mechanical test unveiled that Ni addition enhanced the viscoelastic response; however, it came at the expense of creep resistance. The evaluation of the magnitude of the derivative in the nanoindentation test also demonstrated that the Ni-added sample exhibited a multiple shear-band mode for plastic deformation.

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Atomistic investigation of modulating structural heterogeneities to achieve strength-ductility synergy in metallic glasses

Ouyang

Zhao

et al. 2023

Computational Materials Science

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Effect of Nb and Ta addition on mechanical properties of Zr-based bulk metallic glasses and composites

Cited by 16 publications

References 36 publications

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

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

The Effects of Minor Element Addition on the Structural Heterogeneity and Mechanical Properties of ZrCuAl Bulk Metallic Glasses

Atomistic investigation of modulating structural heterogeneities to achieve strength-ductility synergy in metallic glasses

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