Results 31 to 40 of about 1,322,830 (294)

A phase-field simulation of the solidification process under compression

Journal of Materials Research and Technology, 2021
Semi-solid metal forming processes cover a wide variety of technologies in manufacturing, generally leading to non-dendritic microstructures typified by rosette-like or spherical grains.
Jian-kun Ren, Yun Chen, Yan-fei Cao, Bin Xu, Ming-yue Sun, Dian-zhong Li   +5 more
doaj   +1 more source

Quadrupolar Order in Isotropic Heisenberg Models with Biquadratic Interaction [PDF]

, 2001
Through Quantum Monte Carlo simulation, we study the biquadratic-interaction model with the SU(2) symmetry in two and three dimensions. The zero-temperature phase diagrams for the two cases are identical and exhibit an intermediate phase characterized by
A. Tanaka, F. J. Ohkawa, F. Mila, H. H. Chen, J. Kanamori, K. Harada, Kenji Harada, M. Blume, M. Suzuki, N. Papanicolaou, Naoki Kawashima, P. Morin, P. Morin, R. J. Elliott, R. Settai, R. Shiina   +15 more
core   +2 more sources

Multi-phase field simulation of multi-grain peritectic transition in multiple phase transformation

China Foundry, 2020
Taking Fe-C binary alloy as an example, based on the multi-phase field model, the nucleation and growth of δ phase, peritectic reaction, peritectic transformation, and the growth of subsequent austenite are simulated.
Li Feng, Jun-he Zhong, Chang-sheng Zhu
doaj   +1 more source

Evaluation of the elastic field in phase‐field crystal simulations

PAMM, 2023
AbstractThe phase‐field crystal model (PFC) describes crystal structures at diffusive timescales through a periodic order parameter representing the atomic density. One of its main features is that it naturally incorporates elastic and plastic deformation.
Maik Punke, Vidar Skogvoll, Marco Salvalaglio   +2 more
openaire   +2 more sources

Phase-Field Simulation of Spinodal Decomposition in Mn-Cu Alloys

Metals, 2022
The spinodal decomposition was studied in the aged Mn-40 at. %Cu, Mn-30 at. %Cu, Mn-20 at. %Cu alloys using a phase-field model based on the Cahn–Hillard equation, considering a subregular solution model and the energy contribution of the magnetic ...
Darío A. Sigala-García, Víctor M. López-Hirata, Maribel L. Saucedo-Muñoz, Héctor J. Dorantes-Rosales, José D. Villegas-Cárdenas   +4 more
doaj   +1 more source

Phase-field simulation of core-annular pipe flow

, 2019
Phase-field methods have long been used to model the flow of immiscible fluids. Their ability to naturally capture interface topological changes is widely recognized, but their accuracy in simulating flows of real fluids in practical geometries is not ...
Avila, Marc, Lopez, Jose M., Plana, Carlos, Song, Baofang   +3 more
core   +1 more source

A Soluble Phase Field Model [PDF]

, 1997
The kinetics of an initially undercooled solid-liquid melt is studied by means of a generalized Phase Field model, which describes the dynamics of an ordering non-conserved field phi (e.g.
A. Coniglio, A.J. Bray, Andrea Crisanti, D.B. Abraham, Giulia Iori, H. Müller-Krumbahaar, H.E. Stanley, J. Weeks, J.B. Collins, J.D. Gunton, J.S. Langer, J.W. Cahn, M. Conti, O. Penrose, P. Hohenberg, P. Keblinski, R. Glauber, R. Kupferman, S. Ciuchi, S.L. Wang, T.H. Berlin, U. Marini Bettolo Marconi, U. Marini Bettolo Marconi, U. Marini Bettolo Marconi, Umberto Marini Bettolo Marconi, W.L. Mullins   +25 more
core   +2 more sources

Phase-Field Simulation and Dendrite Evolution Analysis of Solidification Process for Cu-W Alloy Contact Materials under Arc Ablation

Metals
Cu-W alloys are widely used in high-voltage circuit breaker contacts due to their high resistance to arc ablation, but few studies have analyzed the microstructure of Cu-W alloys under arc ablation.
Hanwen Ren, Jian Mu, Siyang Zhao, Junke Li, Yateng Yang, Zhiyun Han, Zexi Xing, Qingmin Li   +7 more
doaj   +1 more source

Influence of Phases of Coherence Functions on the Wind Field Simulation Using Spectral Representation Method

Applied Sciences, 2022
The wave passage effect is a measure of the wave passage delay due to the apparent velocity of waves, which is one of spatially varying properties of multivariate random processes.
Ning Zhao, Xiaolong Li, Liuliu Peng, Zhilong Xu, Xiaowei Chen, Xuewei Wang   +5 more
doaj   +1 more source

Dynamic phase transition features of the cylindrical nanowire driven by a propagating magnetic field

, 2017
Magnetic response of the spin-$1/2$ cylindrical nanowire to the propagating magnetic field wave has been investigated by means of Monte Carlo simulation method based on Metropolis algorithm.
Vatansever, Erol
core   +2 more sources