Multiscale modeling of nanoindentation and nanoscratching by generalized particle method

Chamani, M.; Farrahi, G.H.

doi:10.1016/j.jmgm.2023.108675

Journal of Molecular Graphics and Modelling

2024

DOI: 10.1016/j.jmgm.2023.108675

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Multiscale modeling of nanoindentation and nanoscratching by generalized particle method

M. Chamani,

G.H. Farrahi

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2024

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Cited by 3 publications

References 42 publications

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Enhanced fast inertial relaxation engine (FIRE) for multiscale simulations

Tang,

Shuang,

Xiao

2024

Computational Materials Science

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Enhanced fast inertial relaxation engine (FIRE) for multiscale simulations

Tang,

Shuang,

Xiao

2024

Computational Materials Science

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Quantitative characterization and mapping relationship between microstructure, composition, orientation, and mechanical properties of nickel-based superalloy Inconel 718

Ma,

Gao,

Zhao

et al. 2024

Mater. Res. Express

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This study explores the relationship between the microstructure, composition, orientation, and mechanical properties of the nickel-based superalloy Inconel 718. Employing scanning electron microscopy (SEM), electron microprobe (EMP), nano-indentation, and other techniques, the study observes the structure, confirms the composition, determines orientation, and tests mechanical properties in specific micro-zones. Findings reveal a uniform grain distribution in Inconel 718, with a minor δ-phase presence at grain boundaries. There is a notable enrichment of Nb at the grain boundaries, whereas Fe and Cr levels are lower at these boundaries compared to the grain interiors. The indentation hardness and modulus at the grain boundaries are markedly higher than those within the grains. Moreover, grains with different orientations exhibit diverse microscale mechanical properties, such as hardness and elastic modulus. This research establishes a quantitative mapping relationship between the microstructure, composition, orientation, and mechanical properties of Inconel 718, providing a foundation for future multiscale (micro to macro) mechanical property investigations.

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Simultaneous effect of grain size and indenter dimension on the dislocation nucleation and growth in nanoindentation and nanoscratch processes

Chamani

2024

Eur. Phys. J. Plus

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Multiscale modeling of nanoindentation and nanoscratching by generalized particle method

Cited by 3 publications

References 42 publications

Enhanced fast inertial relaxation engine (FIRE) for multiscale simulations

Enhanced fast inertial relaxation engine (FIRE) for multiscale simulations

Quantitative characterization and mapping relationship between microstructure, composition, orientation, and mechanical properties of nickel-based superalloy Inconel 718

Simultaneous effect of grain size and indenter dimension on the dislocation nucleation and growth in nanoindentation and nanoscratch processes

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