Improving the glass forming ability and plasticity of ZrCuNiAlTi metallic glass by substituting Zr with Sc

Zhu, Jiahua; Gao, Wenjin; Cheng, Sirui; Yang, Xiao‐Jun; Tian, Jinsen; Ma, Jiang; Shen, Jun

doi:10.1016/j.jallcom.2022.164679

Cited by 15 publications

(2 citation statements)

References 57 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: 80%

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: 80%

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

Yu,

Li,

Zhang

et al. 2024

Materials

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show abstract

“…Dealloying is an advanced nanoengineering technique to fabricate the MGs with nanostructures, and the availability of applying this nanoengineering technique to MGs is largely due to the development of MGs itself. Within the development of MGs, many elements of the periodic table have been used in the composition of MGs, not least some of the more exotic elements such as oxygen (O), [ 93 ] hydrogen (H), [ 94 ] scandium (Sc), [ 95 ] etc. The rich elemental composition provides the preconditions for dealloying to fabricate MGs with nanostructures.…”

Section: Fabrication Methods Of Mgs With Nanostructuresmentioning

confidence: 99%

Nanoengineering of Metallic Glasses

2022

Adv Eng Mater

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Metallic glasses with nanostructures recently have attracted extensive attention in various fields due to their unique functional properties. The amorphous atomic structure and nanoscale forms are the fundamental features of these nanomaterials. Herein, the current nanoengineering approaches for fabricating the metallic glasses with nanostructures such as thermoplastic forming, ultrasonic plasticity forming, dealloying, etc., are systematically summarized and the morphology and composition of the various types of metallic glasses with nanostructures that are formed by nanoengineering are classified. In addition, the functional properties and applications of metallic glasses with nanostructures are focused on. On the basis of this comprehensive review, some options for optimizing nanoengineering and anticipating the potential functional applications of metallic glasses with nanostructures are proposed.

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Prediction of supercooled liquid region of Fe-based metallic glasses by deep learning

Nam

2024

Appl. Phys. A

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Improving the glass forming ability and plasticity of ZrCuNiAlTi metallic glass by substituting Zr with Sc

Cited by 15 publications

References 57 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

Nanoengineering of Metallic Glasses

Prediction of supercooled liquid region of Fe-based metallic glasses by deep learning

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