Enhancing fatigue strength of high-strength ultrafine-scale Cu/Ni laminated composites

Wang, Y.C.; Liang, Fangyi; Tan, Hongwei; Zhang, B.; Zhang, G.P.

doi:10.1016/j.msea.2017.12.097

Cited by 14 publications

(2 citation statements)

References 39 publications

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“…In this study, we set forth to address the above concerns by considering an ideal model case. We consider a metal nickel as the reinforcing phase to enhance the strength of the material, while metal copper being the ductile phase 29,30 to construct a two-dimensional Cu/Ni configured composite structure. Based on the different geometric tessellation schemes of 2D plane tessellation, the two-phase distributions of laminated and brick-mortar structures are designed, and then uniaxial and biaxial tensile finite element simulations are carried out based on the GTN constitutive model, to investigate in depth the influences of the different microgeometries, two-phase distributions, and volume fractions of the hard phase on the comprehensive performance of the materials.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation on patterned two-phase microstructure for better mechanical properties

Zeng,

Ma,

wei

2024

Preprint

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In this study, two-dimensional composite of Cu/Ni laminated and brick-mortar structures were explored utilizing the GTN constitutive model and mathematical plane tessellation schemes. Uniaxial and biaxial stretching behaviors were analyzed by precisely controlling the model microgeometries and phase volume fraction characteristics, using finite element numerical simulations. The results show that the laminated structure represented by the triangular tessellation models exhibits stretching-dominated deformation when uniaxial stretching is carried out along the direction of the hard phase laminae and shows outstanding strength. The brick-mortar structure represented by the triangular tessellation models undergoes deformation in a combination of bending and stretching (compression), which helps to improve the plasticity yet avoid a significant decrease in strength. In addition, as the volume fraction of hard phase increases, the overall strength increases, but the plasticity decreases. When the volume fraction of hard phase is higher, the laminated structure represented by the triangular tessellation model is more prominent in terms of strength, whereas when the volume fraction of hard phase is lower, the brick-mortar structure represented by the triangular tessellation model is more prominent in terms of plasticity. Under biaxial conditions, the quadrangular tessellation scheme for brick-mortar structures shows better overall strength and plasticity. By analysing the microstructure-mechanical properties relationship in a two-phase composites, this study provides guidance for material synthesis through structural patterning.

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Section: Introductionmentioning

confidence: 99%

Numerical investigation on patterned two-phase microstructure for better mechanical properties

Zeng,

Ma,

wei

2024

Preprint

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“…Sun et al [15] studied the mechanical properties of Cu/Ni multilayer frabricated by accumulative roll bonding (ARB), and found that the strength increases and the ductility decreases with increasing the ARB cycles, respectively. Wang et al [16] investigated the mechanical properties of Ni/Cu composites with different thickness ratios, and indicated that tensile strength increases and fracture elongation decreases with increasing thickness ratios, respectively. Wang et al [17] investigated the mechanical properties of Cu/Ni composite under different heat treatments, and indicated that flow stress decreases and ductility changes insignificantly with the increase of annealing temperature.…”

Section: Introductionmentioning

confidence: 99%

Molecular dynamics studies of the effect of intermediate Fe layer thickness on the enhanced strength and ductility of Cu/Fe/Ni multilayer

et al. 2023

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The synergistic strength-ductility is very important for composite materials. In this work, we studied the effect of intermediate layer thickness on the mechanical properties of Cu/Fe/Ni multilayer by introducing harder intermediate layer and non-coherent interface using molecular dynamics simulation, and revealed the relationship between the deformation mechanism and the strength-ductility from atomic scale. The results show that the yield strength and flow stress increase with increasing Fe layer thickness, but the tensile strain is opposite. Plastic deformation of all models are triggered by slipping of misfit partial dislocation originating from the decomposition of perfect dislocation on semi-coherent interface. However, the addition of Fe layer and non-coherent interface increases the resistance of dislocation crossing interface, and changes the dominant deformation mechanism from Shockley partial dislocation slipping to deformation twinning migration, thus improving the strength and ductility of multilayer. In addition, the evolution laws of the dislocation length and interface morphology as well as the shear strain distribution are discussed.

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Threshold Deformation and Mechanical Properties of Al/Al Laminated-Metal Material with Inner Grooves Fabricated by Hot Rolling

Wang

et al. 2019

J. of Materi Eng and Perform

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Enhancing fatigue strength of high-strength ultrafine-scale Cu/Ni laminated composites

Cited by 14 publications

References 39 publications

Numerical investigation on patterned two-phase microstructure for better mechanical properties

Numerical investigation on patterned two-phase microstructure for better mechanical properties

Molecular dynamics studies of the effect of intermediate Fe layer thickness on the enhanced strength and ductility of Cu/Fe/Ni multilayer

Threshold Deformation and Mechanical Properties of Al/Al Laminated-Metal Material with Inner Grooves Fabricated by Hot Rolling

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