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Crystallization dynamics of metallic droplet modified with nanoinoculators at its impact with substrate

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Thermophysics and Aeromechanics Aims and scope

Abstract

A physical and mathematical model is developed, and numerical studies are carried out to investigate the processes of non-equilibrium crystallization of a metallic liquid droplet modified with refractory solid nano-inclusions at its impingement on a solid substrate. The conditions are considered, which are typical of thermal spraying of metal coatings, including the plasma spraying. An analysis of the splat formation depending on the concentration of refractory nanoparticles within the metallic droplet volume, their size and substrate temperature is given. The characteristics of splats computed using the non-equilibrium and equilibrium models of crystallization are compared under the same remaining conditions. The conditions of applicability of models are discussed.

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Authors and Affiliations

  1. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia

    A. N. Cherepanov, V. N. Popov & O. P. Solonenko

Authors
  1. A. N. Cherepanov
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  2. V. N. Popov
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  3. O. P. Solonenko
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Correspondence to A. N. Cherepanov.

Additional information

The work was financially supported by the Russian Foundation for Basic Research (Grant No. 09-01-00433-a) and the Interdisciplinary Integration Project of SB RAS No. 1 for the years 2009–2011.

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Cherepanov, A.N., Popov, V.N. & Solonenko, O.P. Crystallization dynamics of metallic droplet modified with nanoinoculators at its impact with substrate. Thermophys. Aeromech. 17, 383–390 (2010). https://doi.org/10.1134/S0869864310030091

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  • DOI: https://doi.org/10.1134/S0869864310030091

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