Abstract
The mathematical model of capillary thermal-concentration convection is proposed; on its basis, a numerical simulation of the process of metal surface alloying with the aid of pulse laser radiation was done. The influence of the pulse intensity on melt hydrodynamics and distribution of the alloying substance was evaluated. In the published works on this theme results of researches are not full enough and the extremely limited. For the substrate material, the data of titanium and iron were used, including the dependence of the surface tension on the melt temperature and admixture concentration.
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