Chemical composition, structure and microhardness of multilayer high-temperature coatings

OBRABOTKAMETALLOV MATERIAL SCIENCE Vol. 24 No. 4 2022 Ta b l e 2 Thickness of coating layers Coating Composition 1, µm Composition 2, µm 1st layer 200 150 2d layer 250 250 3d layer 350 370 4th layer 50 30 Total thickness 850 800 a b Fig. 2. The microstructure of the multilayer high-temperature coating: a – the coating of composition 1; b – the coating of composition 2 a b Fig. 3. A fragment of the diffraction pattern of the outer oxide layer: a – coating of composition 1; b – coating of composition 2

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