Microstructure evolution of bulk metallic glass during thermal oxidation under plastic strain

Zhang, Mao; Zhang, Jiacheng; Deng, Lei; Li, Qiaomin; Jin, Junsong; Wang, Xinyun

doi:10.1016/j.corsci.2018.11.027

Cited by 6 publications

(2 citation statements)

References 50 publications

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“…Figure a shows the XRD results. The polished surface exhibited a typical amorphous feature, but some crystalline phases, such as ZrO 2 , TiO 2 , CuO, Zr 2 Cu, and Cu 10 Zr 7 , were detected on the laser-ablated surface (SI = 50 μm). − The formation of metallic oxides (ZrO 2 , TiO 2 , and CuO) was another possible source of the superhydrophilicity of the laser-ablated surfaces. Accordingly, achieving superhydrophilicity of Zr-based MG surfaces by nanosecond laser ablation depends on the formation of both hierarchical micro/nanostructures and metallic oxides.…”

Section: Resultsmentioning

confidence: 99%

Achieving Superhydrophobicity of Zr-Based Metallic Glass Surfaces with Tunable Adhesion by Nanosecond Laser Ablation and Annealing

Cui

Huang

Wang

et al. 2022

ACS Appl. Mater. Interfaces

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Tuning the surface wettability and adhesion of metallic glasses (MGs) is a promising approach to enrich their engineering applications. In this study, using nanosecond laser ablation in air, hierarchical micro/nanostructures were directly fabricated on a Zr-based MG surface. Following subsequent annealing, the surface exhibited superhydrophobicity (maximum contact angle: 166°, minimum sliding angle: 2°). Furthermore, the superhydrophobic surface could be tuned from low to high surface adhesion force by controlling the laser-ablated spot interval. By analyzing the laser-ablated structures and surface chemical compositions, the superhydrophobicity was related to the formation of hierarchical micro/nanostructures and the absorption of organic compounds with low surface free energy in air, and the change in surface adhesion force was attributed to the difference in surface roughness. The experimental results showed that the superhydrophobic surface with low adhesion force could be used in self-cleaning applications, while the superhydrophobic surfaces with different adhesion forces could be used in no-loss liquid transportation. This study provides an efficient and low-cost way to fabricate superhydrophobic MG surfaces with tunable adhesion, which will broaden the functional applications of MGs.

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Section: Resultsmentioning

confidence: 99%

Achieving Superhydrophobicity of Zr-Based Metallic Glass Surfaces with Tunable Adhesion by Nanosecond Laser Ablation and Annealing

Cui

Huang

Wang

et al. 2022

ACS Appl. Mater. Interfaces

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“…Oxidation significantly changes the structures and properties of MGs, which in turn makes the TPF processes and final products of MGs deviate from the design goal [6,7]. Therefore, it is necessary to improve existing TPF processes and develop new methods to eliminate as much as possible the effects of oxidation on MG TPF processes and products [8].…”

Section: Introductionmentioning

confidence: 99%

Influence of Vibrational Loading on Deformation Behavior of Metallic Glass: A Molecular Dynamics Study

Zhang

et al. 2019

Metals

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The influence of vibrational loading on the deformation behavior of a Zr50Cu46Al4 metallic glass (MG) was characterized via molecular dynamics approaches. High-frequency (1 GHz) vibrational loading was imposed on the elastoplastic deformation stage during the uniaxial tension of the MG conducted at 50 K. It was found that imposing vibrational loading scarcely reduces the average deformation resistance. On the contrary, it results in a notable residual hardening effect after the vibrational loading is removed, which differs significantly from the previously reported acoustic softening mechanisms. Vibrational loading can increase the fraction of STZed atoms and enhance the shear localization degree, which is beneficial to the shear deformation of MGs. Meanwhile, the influence of vibrational loading on the local microstructure of MG is negligible. A plausible explanation of these phenomena is given by considering the accelerated aging of MG stemming from the β relaxation.

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Influence of Oxidation on Structure, Performance, and Application of Metallic Glasses

et al. 2022

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Owing to their unique structure and outstanding properties, metallic glasses are a novel class of structural and functional materials with vast application prospects. However, the metastable amorphous structures and chemical activity of metallic glass constituent elements lead to frequent oxidation during preparation, processing, and application. Comprehensively understanding the oxidation behaviors and underlying mechanisms of metallic glasses is essential for gaining knowledge of metallic glass structures and properties and for promoting engineering applications. Although many studies have examined these issues, more investigations are still required to explore potential industrial applications of metallic glasses. Here, recent research on metallic glass oxidation is consolidated by summarizing the oxidation influence on metallic glass structure, performance, and application and the possibilities and feasibility of oxidizing metallic glasses to reinforce materials or develop material systems are discussed.

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Microstructure evolution of bulk metallic glass during thermal oxidation under plastic strain

Cited by 6 publications

References 50 publications

Achieving Superhydrophobicity of Zr-Based Metallic Glass Surfaces with Tunable Adhesion by Nanosecond Laser Ablation and Annealing

Achieving Superhydrophobicity of Zr-Based Metallic Glass Surfaces with Tunable Adhesion by Nanosecond Laser Ablation and Annealing

Influence of Vibrational Loading on Deformation Behavior of Metallic Glass: A Molecular Dynamics Study

Influence of Oxidation on Structure, Performance, and Application of Metallic Glasses

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