Xue-Zhou Wang

Norwegian University of Science and Technology | NTNU · Department of Materials Science and Engineering

Excess vacancies play crucial roles in the precipitation of age-hardening precipitates in aluminium alloys, but their spatial evolution across grains during heat treatments is less known. In this work, a numerical model is developed to predict the spatial evolution of non-equilibrium excess vacancies during cooling from solution treatment and durin...

An anisotropic lattice Boltzmann-phase field (LB-PF) model is developed to simulate the equiaxed dendritic growth with sedimentation in the melt of binary alloys under the effect of gravity. In present model, the anisotropic lattice Boltzmann scheme is applied to solve the phase field equation describing the evolution of dendritic morphologies, whi...

A lattice Boltzmann-phase field coupled model is developed and utilized to investigate dendrite growth with melt convection in magnetic field. In this model, the two-relaxation-time scheme with D2Q9 vectors is extended to simulate the magnetofluid flow, the anisotropic scheme is developed to model dendrite growth of binary alloys, and the finite vo...

A lattice Boltzmann-finite volume scheme is proposed to numerically study the equiaxed crystal growth during binary alloy solidification. In present model, the lattice Boltzmann method is extended to numerically model the growth of equiaxed crystal coupled with solute transfer. An anisotropic lattice Boltzmann equation fitting into the lattice Bhat...