FIELD: engines and pumps.
SUBSTANCE: invention relates to erosion-resistant protective coat for gas turbine parts. Proposed protective coat consists of one or several repeatedly applied multi-layer systems. Every aforesaid system consists of at least four different layers. First layer, nearby protected surface, is made from metal material compatible with that of protected surface. Second layer applied on first one is made from metal alloy compatible with protective part surface material. Third layer applied onto second one is made from cermet functionally-gradient material providing for smooth transition between second and fourth layers. Fourth layer applied onto third layer is made from nano-structured ceramic material.
EFFECT: wear- and erosion-resistant protective coat.
15 cl, 4 dwg
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