Mathematical modelling of thermal and kinetic phenomena in electron-beam technologies

International Seminar on Interdisciplinary Problems in Additive Technologies

材料科学;物理学

Knyazeva, A.G.^1,3 ; Pobol, I.L.^2 ; Demidov, V.N.^1

Tomsk Polytechnic University, Tomsk, Russia^1

Physical-technical Institute, National Academy of Sciences of Belarus, Minsk, Belarus^2

Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Science, Tomsk, Russia^3

关键词: Constructing models;    Electron beam energy;    Electron beam technology;    Kinetic phenomena;    Numerical solution;    Powder layer;    Surface reliefs;    Treatment rate;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/140/1/012021/pdf
DOI  :  10.1088/1757-899X/140/1/012021

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The article presents a scheme for constructing models using kinetic laws for additional parameters. The work describes the example of the model of electro-beam treatment of a material with a coating. The study uses the simple kinetic law for powder layer evolution due to shrinkage. The model takes into account the melting of powder layer and substrate. The numerical solution gives the temperature field, evolution of the molten pool, the heat affected zone and the surface relief for different moments of time. The results depend on the treatment rate and electron beam energy.