Dry wear behavior and mechanism of a Fe-based bulk metallic glass: description by Hertzian contact calculation and finite-element method simulation

Hua, Nengbin; Zhang, Xiangning; Liao, Zhenlong; Hong, Xiaoshi; Guo, Qiaohang; Huang, Youting; Ye, Xiaoyun; Chen, Wenzhe; Zhang, Tao; Jin, Xiaoqing; Wang, Qianting; Liaw, Peter K.

doi:10.1016/j.jnoncrysol.2020.120065

Cited by 22 publications

(12 citation statements)

References 45 publications

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“…The melting point of WC is too high, and the WC exists in a semi-melted form in the liquid metal. The semi-melted WC particles can be used as nucleation particles in the liquid phase solidification process to promote non-uniform nucleation, causing the local segregation of alloy components and promoting the growth of nucleation particles in the form of dendrites during the solidification of the liquid phase metal [35]. In a certain crystal grain range, the hardness decreases with the increase of WC crystal grains.…”

Section: Resultsmentioning

confidence: 99%

Microscopic Characteristics and Properties of Fe-Based Amorphous Alloy Compound Reinforced WC-Co-Based Coating via Plasma Spray Welding

Wang

et al. 2020

Processes

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Plasma spray welding, as one of the material surface strengthening techniques, has the advantages of low alloy material consumption, high mechanical properties and good coating compactness. Here, the Co alloy, WC and Fe-based amorphous alloy composite coating is prepared by the plasma spray welding method, and the coating characteristics are investigated. The results indicate that the coatings have a full metallurgical bond in the coating/substrate interface, and the powder composition influences the microstructures and properties of the coating. The hardness of coatings increases with the mass fraction of the Fe-based amorphous alloy. The spray welding layer has a much higher wear resistance compared with the carbon steel, and the Fe-20 exhibits a superior wear resistance when compared to others. The results indicate that the amorphous alloy powders are an effective additive to prepare the coating by plasma spray welding for improving the wear resistance of the coating.

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Section: Resultsmentioning

confidence: 99%

Microscopic Characteristics and Properties of Fe-Based Amorphous Alloy Compound Reinforced WC-Co-Based Coating via Plasma Spray Welding

Wang

et al. 2020

Processes

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“…Due to the structural characteristics of amorphous materials with ordered short-range and disordered long-range atomic order, the deformation mechanism is different to metallic alloys. MD simulation is beneficial to understand the deformation mechanism during the sliding process (Meacci et al, 2019;Sun and Wing, 2019;Hua et al, 2020;Nguyen, 2021;Luo et al, 2022), particularly regarding the effect of additions into the amorphous matrix on the wear mechanism.…”

Section: Open Access Edited Bymentioning

confidence: 99%

Study of friction and wear behaviors of Fe-based amorphous coatings by MD simulations

Chu

Zhou

et al. 2022

Front. Mater.

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In this study, molecular dynamics simulation is adopted to investigate the friction and wear mechanism of Fe-based amorphous composited coatings. It was found that the ceramic phase can improve plasticity of the composite coatings to reduce wear. In addition, when the Al2O3 content is 15 wt%, due to the stress concentration between ceramic phase and amorphous phase, the viscosity flow in the amorphous phase results in plastic deformation. Through this, the best wear resistance has been obtained. In addition, with the increase of compression depth, the number of atoms accumulated constantly increases, and the degree of plastic deformation becomes higher in the composite coatings. Finally, a high sliding speed results in the reduction of the wear resistance of coatings.

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“…20 Furthermore, improper alloy composition of crystallites, rough surface, and surface reaction structural relations are the cause for their high friction, poor wear resistance, and poor plasticity limit the long-term performance of metallic glasses at ambient temperature. 21 In addition, localized and inhomogeneous decomposition at ambient temperature, free volume, and accompanied with strain lead to early failure of deformation, which still limits the long-term service of MGs for structural applications. 22 To avoid this catastrophic failure, this investigation aims to study mechanical properties like elastic moduli or hardness, inhomogeneous, and microstructure of metallic glasses in addition to thermal treatment play a great role to provide information about the interrelation mechanism with that of nanoscale friction and nanoscale wear rate.…”

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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Dry wear behavior and mechanism of a Fe-based bulk metallic glass: description by Hertzian contact calculation and finite-element method simulation

Cited by 22 publications

References 45 publications

Microscopic Characteristics and Properties of Fe-Based Amorphous Alloy Compound Reinforced WC-Co-Based Coating via Plasma Spray Welding

Microscopic Characteristics and Properties of Fe-Based Amorphous Alloy Compound Reinforced WC-Co-Based Coating via Plasma Spray Welding

Study of friction and wear behaviors of Fe-based amorphous coatings by MD simulations

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

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