Coupled model of coating formation on a cylindrical substrate

Результат исследований: Материалы для журналаСтатья

8 Цитирования (Scopus)

Аннотация

A coupled model of coating formation on the surface of a part of a cylindrical shape during deposition from the plasma is proposed. This model takes into account the phenomena of thermal diffusion, diffusive thermal conductivity, and mass transfer under the action of the stress gradient, and the formation of chemical compounds. The coating growth rate is considered to be a given function of the particle velocity and particle concentration near the surface of the growing coating. The problem is solved numerically. It is shown that diffusion cross-fluxes, diffusive thermal conductivity, and thermal diffusion during the growth process reduce the width of the transition zone between the substrate and the coating. This effect becomes most essential if the substrate has a low thermal conductivity. Accounting for stresses arising in the coating-substrate system during the deposition process changes the effective transfer coefficients and significantly affects the result of modeling the distribution of chemical elements and their compounds in the coating.

Язык оригиналаАнглийский
Страницы (с-по)539-550
Число страниц12
ЖурналJournal of Applied Mechanics and Technical Physics
Том55
Номер выпуска3
DOI
СостояниеОпубликовано - 1 янв 2014

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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