Kinetics of powder layer shrinkage during electron-beam treatment

All-Russian Conference with the School for Young Scientists “Thermophysics and Physical Hydrodynamics –2016”

Knyazeva, A.^1,2

Tomsk Polytechnic University, 30 Lenina Avenue, Tomsk

634050, Russia^1

Institute of Strength Physics and Materials Science, 2/4 Academicheskii Prosp., Tomsk

634055, Russia^2

关键词: Composition changes;    Electron-beam treatment;    Maxwell models;    Powder layer;    Shallow water theory;    Synthesis of new materials;    Thin surfaces;    Viscoelastic bodies;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/754/4/042009/pdf
DOI  :  10.1088/1742-6596/754/4/042009

来源: IOP

【 摘 要 】

When layerwise synthesis of new material occurs, only thin surface area, thin melt film or thin powder layer undergo essential changes. To describe the behaviour of thin layer where temperature and composition change, a model similar to shallow-water theory is suggested. The equations for thin layer behaviour are deduced for the Maxwell model of viscoelastic body in the approximation of incompressibility. The hydrodynamic part of the problem is coupled with thermal-kinetical one.