Multilayer thin film metallic glasses under nanoscratch: Deformation and failure characteristics

Marimuthu, Karuppasamy Pandian; Han, Giyeol; Lee, Hyungyil

doi:10.1016/j.jnoncrysol.2022.122047

Cited by 5 publications

(2 citation statements)

References 28 publications

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“…This will be the reason for the high wear resistance of materials . Researchers regarded that the real area of contact and material properties, such as microstructure, surface topography, and mechanical properties, are the key factors that govern the wear rate . These findings might offer a promising protocol to enhance the wear resistance and lower the COF of the MG thin films by developing the proper alloy percent composition and appropriate annealing time below the perfect T g value.…”

Section: Resultsmentioning

confidence: 99%

Annealing Effect on Mechanical and Tribological Behaviors of Nanoscale Mechanics of Zr₆₀Cu₂₅Al₅Ag₅Ni₅ Thin-Layer Metallic Glasses for Engineering Materials Applications

Muhabie,

Girma

2023

ACS Omega

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A new and unique alloy formulation design strategy has been developed in order to fabricate thin-layered metallic glasses (TLMGs) with superior fracture resistance and low coefficient of friction (COF) during the nanoscratching test. Due to the outstanding properties, TFMG could be applied for different uses, such as for surface coating, biomedical, bioimprinting, electronic devices, spacecraft, and railway, all of which need surface fracture resistance. The fabricated Zr-based metallic glass was prepared from Zr, Al, Cu, Ni, and Ag above 99.9 Wt % in purity by arch melting techniques. TFMGs were coated on silicon wafer by sputtering the vapor deposition method from bulk metallic glass then annealed below glass transition temperature T g ∼ 450 °C for 10, 30, and 60 min. Nanoindentation and nanoscratch tests were used to investigate nanomechanical and nanotribological properties, and atomic force microscopy (AFM) was used to examine the surface morphology and microstructures of TLMG. The nanoindentation data indicated that the average hardness of metallic glasses increased from 9.75 (as-cast MG) to 13.4 GPa (annealed for 60 min). Coefficients of friction for the cast sample, annealed for unannealed, 10, 30, and 60 min, were 0.062, 0.049, 0.039, and 0.03, respectively, as well as the wear depths were 201. 56, 148.43, 37.32, and 25.27 nm, respectively. These studies show that the coefficient of friction and wear rate decreases when the annealing time increases as a result of atomic reordering and structural relaxation that occurred at longer annealing times. Furthermore, continuous wear process, wear depth, wear track volume, and contact area decrease with increasing annealing time. This study can be used to design protocols to prepare novel TLMGs, which have outstanding mechanical and tribological properties for engineering materials applications.

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Section: Resultsmentioning

confidence: 99%

Annealing Effect on Mechanical and Tribological Behaviors of Nanoscale Mechanics of Zr₆₀Cu₂₅Al₅Ag₅Ni₅ Thin-Layer Metallic Glasses for Engineering Materials Applications

Muhabie,

Girma

2023

ACS Omega

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“…It was found that perpendicular tip face orientation to the scratching direction minimizes protuberances and allows better control of the scratched geometry. Marimuthu et al [14] conducted a study on the performance of multilayer MGTFs on various substrates. Their research revealed that both the layer pattern and modulation ratio played a crucial role in determining the failure behavior of the thin films during nanoscratch tests.…”

Section: Introductionmentioning

confidence: 99%

Annealing-induced changes in wear resistance and nanomechanical properties of CuZr metallic glass thin films

Gao,

He,

Rathan

et al. 2023

Mater. Res. Express

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Over recent years, metallic glass thin films (MGTFs) have found extensive applications in advanced micro-engineering systems. Consequently, there is a need to thoroughly assess the nanomechanical and tribological behaviors of MGTFs to optimize the design of efficient components. In this study, we employed the nanoindentation technique in various modes to investigate the elastic heterogeneity, tribological response, and mechanical properties of CuZr amorphous films. Before conducting the mechanical tests, annealing treatments at 500 K and 600 K were performed to create samples with different stored energies. The thermal history analysis revealed that the annealing process reduced the stored energy in the microstructure. Furthermore, the pre-annealing treatment resulted in increased hardness and Young's modulus of the thin films. Additionally, higher annealing temperatures significantly improved the wear resistance of the MGTFs. Observing the serration dynamics in the scratching test, we noticed that the annealing treatment induced larger shear bands on the wear track side. Moreover, the increase in annealing temperature led to a reduction in elastic heterogeneity, which was consistent with the enthalpy relaxation values in the samples. This suggests that the annealing temperature enhanced the densely packed atomic structure, leading to the stabilization of the thin films.

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Magnetism in Bulk and Thin Film Metallic Glass Systems

Bhattacharya

2024

Indian Institute of Metals Series

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Multilayer thin film metallic glasses under nanoscratch: Deformation and failure characteristics

Cited by 5 publications

References 28 publications

Annealing Effect on Mechanical and Tribological Behaviors of Nanoscale Mechanics of Zr₆₀Cu₂₅Al₅Ag₅Ni₅ Thin-Layer Metallic Glasses for Engineering Materials Applications

Annealing Effect on Mechanical and Tribological Behaviors of Nanoscale Mechanics of Zr₆₀Cu₂₅Al₅Ag₅Ni₅ Thin-Layer Metallic Glasses for Engineering Materials Applications

Annealing-induced changes in wear resistance and nanomechanical properties of CuZr metallic glass thin films

Magnetism in Bulk and Thin Film Metallic Glass Systems

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Multilayer thin film metallic glasses under nanoscratch: Deformation and failure characteristics

Cited by 5 publications

References 28 publications

Annealing Effect on Mechanical and Tribological Behaviors of Nanoscale Mechanics of Zr60Cu25Al5Ag5Ni5 Thin-Layer Metallic Glasses for Engineering Materials Applications

Annealing Effect on Mechanical and Tribological Behaviors of Nanoscale Mechanics of Zr60Cu25Al5Ag5Ni5 Thin-Layer Metallic Glasses for Engineering Materials Applications

Annealing-induced changes in wear resistance and nanomechanical properties of CuZr metallic glass thin films

Magnetism in Bulk and Thin Film Metallic Glass Systems

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Product

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Annealing Effect on Mechanical and Tribological Behaviors of Nanoscale Mechanics of Zr₆₀Cu₂₅Al₅Ag₅Ni₅ Thin-Layer Metallic Glasses for Engineering Materials Applications

Annealing Effect on Mechanical and Tribological Behaviors of Nanoscale Mechanics of Zr₆₀Cu₂₅Al₅Ag₅Ni₅ Thin-Layer Metallic Glasses for Engineering Materials Applications