Phase Composition of Heat-Resistant Layered Coatings of the Al–Cr–Ni System


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The results are provided for a study of the effect of high-temperature action duration in an air atmosphere at 1150°C for 100, 200, and 300 h on phase and chemical composition of heat-resistant layered coatings of the Al–Cr–Ni system. A collection of methods of electron microscopy (Z-contrast regime), energy-dispersion, and x-ray phase analyses shows that the main structural component of a diffusion barrier, providing a stable composition for a (NiAl + Ni3Al) coating and its heat resistance, are chromium-based solid solutions with a content in the range 93–99 at.%, and also solid solutions based on phases Ni3Cr, Ni3Cr2, and Ni3Al.

Sobre autores

V. Shmorgun

Volgograd State Technical University

Autor responsável pela correspondência
Email: VGShmorgun@mail.ru
Rússia, Volgograd

L. Iskhakova

Fiber Optics Research Center, Russian Academy of Sciences

Email: VGShmorgun@mail.ru
Rússia, Moscow

A. Bogdanov

Volgograd State Technical University

Email: VGShmorgun@mail.ru
Rússia, Volgograd

A. Taube

Volgograd State Technical University

Email: VGShmorgun@mail.ru
Rússia, Volgograd

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