Results 11 to 20 of about 1,322,830 (294)

Computational Simulation by Phase Field: Martensite Transformation Kinetics and Variant Selection under External Fields

open access: yesCrystals, 2022
Tailoring martensite transformation is critical for improving the mechanical properties of advanced steels. To provide preliminary guidance for the control of martensite transformation behaviour using external fields by computational simulation method ...
Chenchong Wang   +2 more
doaj   +1 more source

Improved Polymer Crystal Phase Field Model and Numerical Simulation

open access: yesMathematics, 2022
The existing phase field model of polymer crystallization contains many parameters that lack actual physical meaning. Although the value of these parameters can be adjusted to obtain results consistent with the experiment, it cannot correspond to the ...
Binxin Yang, Zhifeng Wang, Zhijuan Meng
doaj   +1 more source

Phase Field Simulation of AA6XXX Aluminium Alloys Heat Treatment

open access: yesMetals, 2021
Heat treatment has a significant impact on the microstructure and the mechanical properties of Al-Mg-Si alloys. The present study presents a first Phase-Field modelling approach on the recrystallisation and grain growth mechanism during annealing.
Antonis Baganis   +2 more
doaj   +1 more source

STOCHASTIC PHASE-FIELD SIMULATIONS OF SYMMETRIC ALLOY SOLIDIFICATION [PDF]

open access: yesFluctuation and Noise Letters, 2004
We study initial transient stages in directional solidification by means of a non-variational phase field model with fluctuations. This model applies for the symmetric solidification of dilute binary solutions and does not invoke fluctuation-dissipation theorem to account for the fluctuation statistics.
Benítez Iglesias, Raúl   +1 more
openaire   +4 more sources

High-Throughput Screening of Optimal Process Parameters for PVD TiN Coatings With Best Properties Through a Combination of 3-D Quantitative Phase-Field Simulation and Hierarchical Multi-Objective Optimization Strategy

open access: yesFrontiers in Materials, 2022
Physical vapor deposition (PVD) is one of the most important techniques for coating fabrication. With the traditional trial-and-error approach, it is labor-intensive and challenging to determine the optimal process parameters for PVD coatings with best ...
Rao Dai   +6 more
doaj   +1 more source

Phase field simulations in miscibility gaps [PDF]

open access: yesCalphad, 2009
Abstract Using phase field simulations, it is possible to simulate the dynamics and morphology of immiscible liquids/solids appearing at the miscibility gap of any system. These simulations may also be used to determine the asymptotic compositions of the fluids for a given Gibbs energy.
Maria Helena Sousa Soares de Oliveira Braga   +3 more
openaire   +2 more sources

DMC-TPE: tree-structured Parzen estimator-based efficient data assimilation method for phase-field simulation of solid-state sintering

open access: yesScience and Technology of Advanced Materials: Methods, 2023
In phase-field simulations, accurate material parameters are required to quantitatively predict microstructural evolutions. Non-sequential data assimilations enable the estimation of unknown material parameters by minimizing a cost function that ...
Akimitsu Ishii   +2 more
doaj   +1 more source

Study on the mechanism of carbide precipitation by surface quenching treatment on GCr15 bearing rings based on the phase-field method

open access: yesFrontiers in Materials, 2022
In this paper, the thermodynamics database describing Gibbs free energy of FCC phase and M23C6 phase based on Fe-Cr-C ternary alloy was coupled into phase field simulation, and the phase field model was developed on the mesoscopic scale which simulates ...
Qian Liu   +5 more
doaj   +1 more source

Phase field simulation of liquid-solid-eutectoid multiple phase transformations of a Fe-C binary alloy

open access: yesChina Foundry, 2020
A new continuous multi-phase transformation field model was established for liquid-solid-eutectoid transformation. Taking Fe-C alloy as an example, the model was used to simulate the evolution of the micromorphology of the liquid-solid phase transition ...
Li Feng, Jun-he Zhong, Chang-sheng Zhu
doaj   +1 more source

Another mean field treatment in the strong coupling limit of lattice QCD [PDF]

open access: yes, 1999
We discuss the QCD phase diagram in the strong coupling limit of lattice QCD by using a new type of mean field coming from the next-to-leading order of the large dimensional expansion.
Ohnishi, Akira   +2 more
core   +6 more sources

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