Coarse-Grained Molecular Dynamics Simulations of Boundary Lubrication on Nanostructured Metal Surfaces

Albina, Jan-Michael; Kubo, Atsushi; Shiihara, Yoshinori; Umeno, Yoshitaka

doi:10.1007/s11249-020-1276-2

Cited by 10 publications

(4 citation statements)

References 39 publications

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“…10(b)(ii). 255 Similarly, in a recent study by Kobayashi et al , the authors developed CG bead-spring models for polar PFPE to generate nanometer-thick films sheared between solid surfaces. 256 These systems were simulated to investigate the lubricant dynamic behavior when two types of substrate surface roughnesses were used.…”

Section: Molecular Simulations In Tribologymentioning

confidence: 99%

A review of recent advances and applications of machine learning in tribology

Sose

Joshi

Kunche

et al. 2023

Phys. Chem. Chem. Phys.

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Section: Molecular Simulations In Tribologymentioning

confidence: 99%

A review of recent advances and applications of machine learning in tribology

Sose

Joshi

Kunche

et al. 2023

Phys. Chem. Chem. Phys.

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“…In addition to the above research contributing to the lubrication theory, atomic simulation also has many explorations in the research and design of lubricants. Albina et al [876] performed coarsegrained molecular dynamics (CGMD) simulations to study the friction properties of lubricant molecules on nanostructured metal surfaces. By acting as attraction centers for lubricant molecules, the fine grain boundary structure was thought to prevent oil film delamination, thereby improving friction and wear performance.…”

Section: Lubricant Theory and Designmentioning

confidence: 99%

A review of advances in tribology in 2020–2021

Meng

et al. 2022

Friction

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Around 1,000 peer-reviewed papers were selected from 3,450 articles published during 2020–2021, and reviewed as the representative advances in tribology research worldwide. The survey highlights the development in lubrication, wear and surface engineering, biotribology, high temperature tribology, and computational tribology, providing a show window of the achievements of recent fundamental and application researches in the field of tribology.

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“…Scratch and indentation is a contact loading process widely used to test various properties of materials, such as elastic modulus, hardness, fracture toughness, and surface adhesion [ 8 , 9 , 10 ]. The molecular dynamics simulation method can compensate for the defects of practical experimental methods by constructing microscale models and quantitatively reproducing the dynamic processes in real solids [ 8 , 9 , 10 , 11 , 12 , 13 , 14 ]. Therefore, it has become important for studying friction and wear mechanisms.…”

Section: Introductionmentioning

confidence: 99%

Molecular Dynamics Simulation on Nanoindentation of M50 Bearing Steel

Yang

Wei³

et al. 2023

Materials

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M50 bearing steel has great potential for applications in the field of aerospace engineering, as it exhibits outstanding mechanical and physical properties. From a microscopic point of view, bearing wear originates from the microscopic region of the contact interface, which usually only contains hundreds or even several atomic layers. However, the existing researches seldom study the wear of M50 bearing steel on the microscopic scale. This study explored the atomic-scale modeling method of M50 bearing steel. Then molecular dynamics simulations of nanoindentation on the M50 bearing steel model were carried out to study the size effect of the mechanical behaviors. The simulation results show that with the change in the radius of the diamond indenter in the nanoindentation simulation, the calculated nanohardness decreases. According to the size effect, when the indentation radius is 200 nm, the hardness obtained by the simulation is about 9.26 GPa, and that of the M50 sample measured by the nanoindentation is 10.4 GPa. Then nanoindentation simulations were carried out at different temperatures. The main bearings of aero-engines generally work at 300–500 degrees Celsius. When the simulated temperature was increased from 300 K to 800 K, the hardness of the model decreased by 15%, and the model was more prone to plastic deformation. In this study, a new molecular dynamics modeling method for M50 bearing steel was proposed, and then nanoindentation simulation was carried out, and the nanoindentation experiment verified the correctness of the model. These results are beneficial to the basic understanding of the mechanical performance of M50 bearing steel.

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Coarse-Grained Molecular Dynamics Simulations of Boundary Lubrication on Nanostructured Metal Surfaces

Cited by 10 publications

References 39 publications

A review of recent advances and applications of machine learning in tribology

A review of recent advances and applications of machine learning in tribology

A review of advances in tribology in 2020–2021

Molecular Dynamics Simulation on Nanoindentation of M50 Bearing Steel

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