Structure of zirconium alloy powder coatings processed by high voltage electric discharge consolidation

Evgeny G. Grigoryev, Lyuba Yu. Lebedeva, Oleg L. Khasanov, Eugene A. Olevsky

Результат исследований: Материалы для журналаСтатья

2 Цитирования (Scopus)

Аннотация

Zirconium alloy powders (Zr+1% Nb) of spherical and flake forms have been consolidated by high voltage electric discharge processing. The consolidation enabled the fabrication of coatings on ceramic and metallic substrates as well as of freestanding powder components. Zirconium alloy powders (Zr+1% Nb) of spherical and flake forms have been consolidated by high voltage electric discharge processing. The consolidation enabled the fabrication of coatings on ceramic and metallic substrates as well as of freestanding powder components. The experimental dependence of the electric conductivity of the powders of spherical shape and flake shape on the applied pressure has been investigated. The influence of the current pulse amplitude on the final density of the consolidated zirconium powder alloy coatings on ceramic and metallic substrates and of the produced free-standing powder samples has been analyzed for different applied pressures. The maximum amplitude of the electric current density above, which the consolidation process is unstable and has a nature of blowout has been determined. The conducted metallographic analysis showed the preservation of the microstructure of initial powder particles after the process of high voltage electric discharge consolidation.

Язык оригиналаАнглийский
Страницы (с-по)792-796
Число страниц5
ЖурналAdvanced Engineering Materials
Том16
Номер выпуска6
DOI
СостояниеОпубликовано - 2014

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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