Fractal growth of the dense-packing phase in annealed metallic glass imaged by high-resolution atomic force microscopy

Yang, Yong; Zeng, Jianrong; Volland, A.; Blandin, Jean‐Jacques; Gravier, S.; Liu, Chang

doi:10.1016/j.actamat.2012.06.025

Cited by 114 publications

(67 citation statements)

References 32 publications

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“…Glass transition, anelasticity and plastic flow CoreeShell Model [17,57,75,76] MGs are composed of liquid-like sites (core) embedded into an elastic glassy matrix (shell).…”

Section: Plastic Flowmentioning

confidence: 99%

On the source of plastic flow in metallic glasses: Concepts and models

et al. 2015

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a b s t r a c tWe briefly review the state-of-the-art study on plastic flow in metallic glasses. Especially, we survey the features and behaviors, percolation, and response of the basic deformation units to the activation of stress and temperature, and various models and notions on microscopic flow in metallic glasses. The discussion, comments and perspective on possible unified notation, terminologies and models on plastic flow in metallic glasses are presented. The purpose is to reach a consensus within the community with a hope to eventually unify the notations and models on the deformations in metallic glasses.

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“…Glass transition, anelasticity and plastic flow CoreeShell Model [17,57,75,76] MGs are composed of liquid-like sites (core) embedded into an elastic glassy matrix (shell).…”

Section: Plastic Flowmentioning

confidence: 99%

On the source of plastic flow in metallic glasses: Concepts and models

et al. 2015

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“…From that regard, if mechanical energy is somehow being dissipated locally in an MG in an anelastic fashion, one may expect a distribution of the local energy dissipation keyed to the local structural heterogeneity in the MG. Following the method of Liu et al [20], we have recently obtained the local energy dissipation map of a Zr 70 Ni 30 (in atomic %) metallic-glass thin film by using the amplitude-modulation atomicforce-microscopy (AM-AFM) [21], the details of which can be found elsewhere [20,21] and are omitted here for brevity. For the purpose of demonstration, Fig.…”

Section: Introductionmentioning

confidence: 99%

A mean-field model for anelastic deformation in metallic-glasses

Liu

Yang

2012

Intermetallics

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“…According to the previous work30313233, it is known that the amorphous structure of BMGs is heterogeneous, which consists of liquid- and solid-like atoms as illustrated in Fig. 5(a).…”

Section: Discussionmentioning

confidence: 99%

Superior Tensile Ductility in Bulk Metallic Glass with Gradient Amorphous Structure

Wang

Yang

Jiang

et al. 2014

Sci Rep

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Over centuries, structural glasses have been deemed as a strong yet inherently ‘brittle’ material due to their lack of tensile ductility. However, here we report bulk metallic glasses exhibiting both a high strength of ~2 GPa and an unprecedented tensile elongation of 2–4% at room temperature. Our experiments have demonstrated that intense structural evolution can be triggered in theses glasses by the carefully controlled surface mechanical attrition treatment, leading to the formation of gradient amorphous microstructures across the sample thickness. As a result, the engineered amorphous microstructures effectively promote multiple shear banding while delay cavitation in the bulk metallic glass, thus resulting in superior tensile ductility. The outcome of our research uncovers an unusual work-hardening mechanism in monolithic bulk metallic glasses and demonstrates a promising yet low-cost strategy suitable for producing large-sized, ultra-strong and stretchable structural glasses.

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Fractal growth of the dense-packing phase in annealed metallic glass imaged by high-resolution atomic force microscopy

Cited by 114 publications

References 32 publications

On the source of plastic flow in metallic glasses: Concepts and models

On the source of plastic flow in metallic glasses: Concepts and models

A mean-field model for anelastic deformation in metallic-glasses

Superior Tensile Ductility in Bulk Metallic Glass with Gradient Amorphous Structure

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