Results 11 to 20 of about 1,373,943 (268)
Simulating Diffusion Induced Grain Boundary Migration in Binary Fe–Zn
Metals, 2022 A recently developed phase-field model for simulating diffusion-induced grain boundary migration (DIGM) is applied to binary Fe–Zn. The driving force for the boundary migration is assumed to come from the coherency strain energy mechanism suggested by ...
Deepjyoti Mukherjee +2 more
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Sharp Phase Field Method [PDF]
Physical Review Letters, 2018 Phase field modelling offers an extremely general framework to predict microstructural evolutions in complex systems. However, its computational implementation requires a discretisation scheme with a grid spacing small enough to preserve the continuous character of the theory. We present here a new formulation, which is intrinsically discrete, in which
Finel, Alphonse +5 more
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Corners in phase-field theory [PDF]
Physical Review E, 2021 Phase-field models for strongly anisotropic surface energy need to be regularized to remove the ill posedness of the dynamic equations. Regularization introduces a new length scale, the corner size, also called the bending length. For large corner size, with respect to interface thickness, the phase-field method is known to converge asymptotically ...
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Stress-dependent dislocation core structures leading to non-Schmid behavior
Materials Research Letters, 2021 The stress-dependent core structures of dislocations for basal slip in magnesium are calculated using ab initio generalized stacking fault energy surface and microscopic phase-field method. The dissociation of dislocation cores exhibits the dependence on
Di Qiu +3 more
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Soluble phase field model [PDF]
Physical Review E, 1997 13 pages, 8 figures, RevTeX 3.1, submitted to Physical Review ...
U. MARINI BETTOLO MARCONI +2 more
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Frontiers in Materials, 2022 In this work, we propose an efficient numerical method to study the effects of microstructures on the effective diffusion coefficient of the diffusion component in materials. We take the diffusion of hydrogen (H) atoms in porous polycrystalline tungsten (
Bingchen Li +13 more
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Convergence Check Phase-Field Scheme for Modelling of Brittle and Ductile Fractures
Applied Sciences, 2023 The paper proposes a novel staggered phase-field framework for modelling brittle and ductile fractures in monotonic and cyclic loading regimes. The algorithm consists of two mesh layers (displacement and phase field) and a single special-purpose, user ...
Tomislav Lesičar +2 more
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Towards a Physically Consistent Phase-Field Model for Alloy Solidification
Metals, 2022 We give an overview of contributions made to the computational phase-field modelling of alloy solidification from the University of Leeds as part of the LiME project (EPSRC Advanced Manufacturing Hub in Liquid Metal Engineering).
Peter C. Bollada +2 more
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Frontiers in Physics, 2023 The paper proposed a novel framework for efficient simulation of crack propagation in brittle materials. In the present work, the phase field represents the sharp crack surface with a diffuse fracture zone and captures the crack path implicitly.
Haojie Lian +4 more
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Frontiers in Materials, 2022 Antiphase boundaries (APBs) of L12 ordered γ′-Co3 (Al, W) precipitates have an essential effect on the high-temperature strength of Co-based monocrystal superalloys. In this work, the antiphase boundaries and their effects on the evolution kinetics of γ′
Yinfei Ju +11 more
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