naa a22 4500 510759025 CHVBK 20180411083132.0 cr unu---uuuuu 180411e20130401xx s 000 0 eng 10.1134/S0869864313020091 doi (NATIONALLICENCE)springer-10.1134/S0869864313020091 Modelling of multi-vortex convection of fine alloying components in the molten pool under the laser radiation [Elektronische Daten] [A. Gurin, O. Kovalev] The work is devoted to the mathematical modelling and numerical solution of the problems of conjugate micro-convection, which arises under the laser radiation action in the metal melt with surface-active refractory disperse components added for the modification, hardening, and doping of the treated surface. A multi-vortex structure of the melt flow has been obtained, the number of vortices in which depends on the surface tension variation, on the temperature and power of laser radiation. Special attention is paid to the numerical modelling of the behavior in the melt of the substrate of disperse admixture consisting of the tungsten carbide particles. The role of microconvection in the distribution of powder particles in the surface layer of the substrate after its cooling is shown. A.M. Gurin and O.B. Kovalev, 2013 laser radiation nationallicence metal nationallicence melting nationallicence thermocapillary convection nationallicence fine admixture nationallicence mathematical modelling nationallicence Gurin A. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia aut Kovalev O. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia aut Thermophysics and Aeromechanics Nauka/Interperiodica 20/2(2013-04-01), 227-236 0869-8643 20:2<227 2013 20 11510 https://doi.org/10.1134/S0869864313020091 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0869864313020091 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gurin A. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Kovalev O. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia aut NATIONALLICENCE 773 0- Thermophysics and Aeromechanics Nauka/Interperiodica 20/2(2013-04-01), 227-236 0869-8643 20:2<227 2013 20 11510 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer