An efficient and quantitative phase-field model for elastically heterogeneous two-phase solids based on a partial rank-one homogenization scheme

Chatterjee, Sourav; Schwen, Daniel; Moelans, Nele

doi:10.1016/j.ijsolstr.2022.111709

Cited by 4 publications

(1 citation statement)

References 84 publications

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“…where ε 0 is the eigenstrain due to precipitation, ε p is the plastic strain, and ε is the total strain. The eigenstrain is expressed as [32]…”

Section: Free Energy Formulation Of Fe-cr-ni-cu Alloy Systemmentioning

confidence: 99%

Effect of Cu-Rich Phase Growth on Creep Deformation of Fe-Cr-Ni-Cu Medium-Entropy Alloy: A Phase Field Study

Gao

et al. 2023

Metals

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The Cu-rich phase is a high-efficiency and ultra-stable precipitation-strengthening phase and has been widely used in many steels and alloys, especially in heat-resistant steels and alloys. Creep damage is accompanied with the coarsening of the second phase. In the present work, the calculation of phase diagrams (CALPHAD) method and elastic–plastic mechanics are coupled with the phase field (PF) approach to investigate the growth behavior and the accompanying stress/strain field evolution of nano-sized Cu-rich precipitates in an Fe-Cr-Ni-Cu medium-entropy alloy. The results show that creep strain is intensified with the coarsening of Cu-rich particles. The simulated size of Cu-rich particles is in good agreement previous experimental reports. The plastic strain tends to shear the Cu-rich phase when they are relatively fine (~<11 nm), and the size of the Cu-rich particles has a slight influence on the creep strain at this stage. In contrast, coarse Cu-rich precipitates (~>11 nm) are bypassed by the plastic strain due to the enhancing stress concentration around the interface, and the creep strain is rapidly aggravated with the growth of Cu-rich particles. The coarsening of Cu-rich particles will be retarded by the adjacent particles due to the overlapping of the diffusion zone, and hence the creep strain was reduced when crept for the same time. The retard effect will vanish when their distance is sufficiently long (~>60 nm). When the size of the Cu-rich particles is identical, the creep strain will be mitigated with elongation of the distance between two Cu-rich particles.

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“…where ε 0 is the eigenstrain due to precipitation, ε p is the plastic strain, and ε is the total strain. The eigenstrain is expressed as [32]…”

Section: Free Energy Formulation Of Fe-cr-ni-cu Alloy Systemmentioning

confidence: 99%

Effect of Cu-Rich Phase Growth on Creep Deformation of Fe-Cr-Ni-Cu Medium-Entropy Alloy: A Phase Field Study

Gao

et al. 2023

Metals

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A computationally efficient and mechanically compatible multi-phase-field model applied to coherently stressed three-phase solids

Chatterjee

Schwen

Moelans

2023

Computational Materials Science

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Unraveling elastochemical effects in microstructural evolution of Al–Cu–Ni system through DFT-informed multi-phase field simulations

Poudel,

Moelans,

Thapa

et al. 2024

International Journal of Solids and Structures

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An efficient and quantitative phase-field model for elastically heterogeneous two-phase solids based on a partial rank-one homogenization scheme

Cited by 4 publications

References 84 publications

Effect of Cu-Rich Phase Growth on Creep Deformation of Fe-Cr-Ni-Cu Medium-Entropy Alloy: A Phase Field Study

Effect of Cu-Rich Phase Growth on Creep Deformation of Fe-Cr-Ni-Cu Medium-Entropy Alloy: A Phase Field Study

A computationally efficient and mechanically compatible multi-phase-field model applied to coherently stressed three-phase solids

Unraveling elastochemical effects in microstructural evolution of Al–Cu–Ni system through DFT-informed multi-phase field simulations

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