Effects of structure relaxation and surface oxidation on nanoscopic wear behaviors of metallic glass

Jia, Qian; He, Wenhao; Hua, Dongpeng; Zhou, Qing; Du, Yin; Ren, Yin; Lu, Zhibin; Wang, Haifeng; Zhou, Feng; Wang, Jian

doi:10.1016/j.actamat.2022.117934

Cited by 74 publications

(19 citation statements)

References 56 publications

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“…In addition, the particles after grinding have sharp edges and corners, and their geometric shape shows the characteristics of irregular shape, which is consistent with the fracture of brittle materials. It is known that the properties of MG alloys and MGMC materials are obviously affected by various conditions such as thermal history [ 37 , 38 ], oxidation [ 39 , 40 , 41 ], and residual stress [ 42 , 43 , 44 ], etc. Relatively, large particles are less affected by the heating change, oxidation and other conditions due to low specific surface area.…”

Section: Resultsmentioning

confidence: 99%

Fast Degradation of Azo Dyes by In Situ Mg-Zn-Ca-Sr Metallic Glass Matrix Composite

Jin

Wang

et al. 2023

Materials

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Mg-based metallic glass (MG) has attracted extensive attention in the field of wastewater treatment due to its high decolorization rate in degrading azo dyes. However, the azo dye degradation rate of Mg-based MGs is strongly dependent on the particle size. Improving the intrinsic degradation efficiency using large particles is of great interest for future applications. In this work, in-situ metallic glass matrix composites (MGMCs) with high Mg content were successfully prepared by melt spinning. It is found that when the Mg content is 79–82%, the as-spun sample shows typical glassy characteristics. The SEM and XRD tests confirm that the as-spun sample is composed of α-Mg dendrite, multiple Mg-Zn intermetallic particles and an MG matrix. The degradation experiment using Direct Blue 6 and a 500 μm particle sample demonstrate that the Mg82Zn14Ca3Sr1 MGMC sample degrades azo dyes faster than typical Mg-Zn-Ca MG alloy. It can be attributed to the galvanic cell effect on the α-Mg/MG interface, which reduces the waste of active Mg atoms in the MG matrix according to the corrosion protection mechanism by the α-Mg anode sacrifice. This result provides a new perspective and insight into the design of azo dye degradation alloys and the understanding of degradation mechanisms.

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Section: Resultsmentioning

confidence: 99%

Fast Degradation of Azo Dyes by In Situ Mg-Zn-Ca-Sr Metallic Glass Matrix Composite

Jin

Wang

et al. 2023

Materials

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“…The bio-inspired laminated structure from natural biological materials such as bones, shells, and spider silk can contribute excellent tribological properties [ 210 , 211 ]. Graphene is one of the most suitable bio-inspired materials that can be used to obtain laminated structures [ 212 , 213 , 214 , 215 ]. The nano-indentation and nano-scratch approaches were used to evaluate the tribological behavior of bio-inspired laminated aluminum matrix composite (BAMC) reinforced with graphene [ 216 ].…”

Section: Biomimetic Surfaces Inspired By Animalsmentioning

confidence: 99%

Tribological Behavior of Bioinspired Surfaces

Шарма

Grewal

2023

Biomimetics

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Energy losses due to various tribological phenomena pose a significant challenge to sustainable development. These energy losses also contribute toward increased emissions of greenhouse gases. Various attempts have been made to reduce energy consumption through the use of various surface engineering solutions. The bioinspired surfaces can provide a sustainable solution to address these tribological challenges by minimizing friction and wear. The current study majorly focuses on the recent advancements in the tribological behavior of bioinspired surfaces and bio-inspired materials. The miniaturization of technological devices has increased the need to understand micro- and nano-scale tribological behavior, which could significantly reduce energy wastage and material degradation. Integrating advanced research methods is crucial in developing new aspects of structures and characteristics of biological materials. Depending upon the interaction of the species with the surrounding, the present study is divided into segments depicting the tribological behavior of the biological surfaces inspired by animals and plants. The mimicking of bio-inspired surfaces resulted in significant noise, friction, and drag reduction, promoting the development of anti-wear and anti-adhesion surfaces. Along with the reduction in friction through the bioinspired surface, a few studies providing evidence for the enhancement in the frictional properties were also depicted.

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“…Arrangement of atoms can affect atomic transport, hardness, elastic modulus, magnetic, wear rate, friction and electrochemical properties. 7,24 Annealing results for chemical reordering leads to phase transition of MG, depending on the interatomic distance of atoms and improved plasticity of MG. Short interatomic distance between transition metals in the alloy composition may be existed only in the metallic glass. 25 Representative indentations on the BMG and TLMG of load-displacement curves are shown in Fig.…”

Section: Microstructure and Mechanical Propertiesmentioning

confidence: 99%

“…5 In addition, due to the lack of long-range atomic order in BMGs offers them exceptional mechanical and physic-chemical properties, 6 related to conventional crystalline metallic materials, making them a promising class of engineering materials. MGs are also novel wear-resistant 7 and low friction materials with high intensive demand in tribological applications. 8 Zr-based MGs display a smaller friction coe cient than other metals during dry sliding conditions.…”

Section: Introductionmentioning

confidence: 99%

Annealing Effect on Mechanical and Tribological behaviour of Nanoscale Mechanics of Thin Layer Metallic Glasses for Engineering Material Applications

Muhabie

Girma

2023

Preprint

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A new and unique alloy formulation design strategies has been developed in order to fabricate thin layered metallic glasses (TFMG) with superior fracture resistance and low coefficient of friction (COF) during nano-scraching test. Due to the outstanding properties, TFMG could be applied for different uses uch as surface coating, biomedical, bio implant, electronic devices, spacecraft and railway, all of which need surface fracture resistance. The fabricated Zr-based metallic glass having the composition of Zr60Cu25Al5Ag5Ni5 (at.%) was annealed for 10, 30, and 60 min below the glass transition temperature. Nanoindentation and nanoscratch tests were used to investigate mechanical and nanotribological properties. Atomic force microscopy (AFM) was used to examine the surface morphology and microstructures. The annealing effect and applied forces change over the chemical structure and stability, morphological change, elastic modulus, hardness, wear rate, and coefficient of friction of the samples were systematically investigated. The nano-indentation data indicated that the hardness and average elastic modulus of the samples increased with increasing annealing time, compared with those of the as-cast MG. More intriguingly, the coefficient of friction and wear rate decreases when the annealing time increases compared to as-cast MG. Furthermore, the continuous wear process, wear depth, wear track volume, and contact area decreases with increasing annealing time, as a result of the improvement of the mechanical and tribological properties of the thin-layered MGs. This study can be a reference to the design protocol to prepare novel a-MGs, which have outstanding mechanical and tribological behavior for engineering material applications.

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Effects of structure relaxation and surface oxidation on nanoscopic wear behaviors of metallic glass

Cited by 74 publications

References 56 publications

Fast Degradation of Azo Dyes by In Situ Mg-Zn-Ca-Sr Metallic Glass Matrix Composite

Fast Degradation of Azo Dyes by In Situ Mg-Zn-Ca-Sr Metallic Glass Matrix Composite

Tribological Behavior of Bioinspired Surfaces

Annealing Effect on Mechanical and Tribological behaviour of Nanoscale Mechanics of Thin Layer Metallic Glasses for Engineering Material Applications

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