Wetting Behavior of Zn Droplets on Fe Surfaces: Insights from Molecular Dynamics Simulations.

The liquid metal embrittlement (LME) induced by Zn melts in advanced high strength steels has seriously hindered their wide application in various industries. Microscopically, wetting is the precursor for LME; it is therefore crucial to understand the wetting of Zn melts on Fe surfaces. Molecular dynamics simulations were conducted to investigate the wetting behavior of Zn droplets on Fe(001), Fe(110), and Fe(111) surfaces from both thermodynamics and dynamics aspects.

Study on the diffusion and deposition law of pore slurry in gangue filling zone based on CFD-DEM coupling.

In this study, the slurry diffusion in a cavity filled with coal gangue was studied by combining experimental and numerical simulation methods. By calibrating slurry and particle materials, the grouting process in coal gangue filling area is simulated successfully, and the change of slurry diffusion flow field and particle movement and settling process in different dimensions are deeply analyzed. Both experimental and numerical simulation results show that the particle settlement presents a bell-shaped curve, which is of great significance for understanding the particle movement and settlement behavior in the filling cavity.