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Aircraft metallic materials >> Vacuum Plasma High Energy Technology (VPTHE method) for the production of coatings and ion surface treatment >> Coatings and their application

Coatings and their application

Heat-, corrosion- and erosion- resistant strengthening coatings and brazing alloys, produced by VPTHE method:

- diffusion alloyed aluminide coatings;
- double-stage complex-alloy diffusion aluminide coatings;
- overlay multicomponent coatings of Me-Cr-Al-R-Y (Me: Ni, Ni-Co; R: Ta, W-C a.o.) system;
- high-temperature overlay-diffusion multicomponent two-, three-layer coatings (MeC)+(Ni-Cr-Al-R-Y)+(Ni-Al-Cr-R-Y) [Me: Ti, Cr a.o.; R: Ta, W-C a.o.) system;
- corrosion-resistant overlay-diffusion multicomponent coatings of (Ni-Co-Cr-Al-Y) + (Ni-Al-Cr-Y-B) system;
- strengthening erosion-resistant coatings on the base of MeC(N) [Me: Zr, Cr, Ti a.o.) for the all-climatic service conditions;
- strengthening high-temperature wear-resistant coating on the base of multicomponent Ni-base alloys with the carbide strengthening.


Microstructure of multicomponent overlay coating

Microstructure of overlay-diffusionhigh-temperature coating

Ion-plasma protective and strengtheningcoatings for GTE parts

Coating type

Application

Alloy
(coating structure)

Coating system

Aluminide diffusion coatings

Protection against the gaseous corrosion within the temperature range of 950-1050°C

VSDP-11(VP)

Ni-Al-Si-Y

VSDP-13(VP)

Ni-Al-Si-В

VSDP-15(VP)

Ni-Al-Cr-Si-Y

Alloyed aluminide diffusion coatings

Protection against the gaseous corrosion within the temperatures of 1000-1100 °C. Thermo-protective coatings

SDP-1 + VSDP-11(VP)

Ni-Al-Cr-Co-Si-Y

SDP-2 + VSDP-11(VP)

Ni-Al-Cr-Si-Y

SDP-2 + VSDP-16(VP)

Ni-Al-Cr-Y

Overlay coatings

 

Antigaseous corrosion protection within the temperatures of 1050-1100°C

SDP-2

Ni-Cr-Al-Y

VSDP-5(7)

Ni-Cr-Al-B

Protection against the sulphide-oxide corrosion at the  temperature from 800 to 950°С

SDP-1

Ni-Co-Cr-Al-Y

SDP-6

Co-Cr-Al-Ni-Y

Compressor blade protection against the dust erosion

VESS-1

Cr3C2

VEST-1

TiN

Antiwearing protection T≤900°С

VGL-2

Ni-Cr-Co-W-Mo-Al-С

Coating-solders for the production of brazed joints of high-temperature steel thin-walled structures

VPr24, VPr27, VPr32, VPr36

-

Overlay-diffusion coatings

Antigaseous corrosion protection within the temperatures of 1100-1200°C
Thermo-protective coatings

SDP-2 + VSDP-16(VP)

(MeC)+(Ni-Cr-Al-Y)+(Ni-Al-Cr-Y)

VSDP-8 + VSDP-18(VP)

(Ni-Cr-Al-W-C-Y)+(Ni-Al-Cr-Y)

VSDP-9 + VSDP-18(VP)

(Ni-Cr-Al-Та-Y)+(Ni-Al-Cr-Y)

Protection against the sulphide-oxide corrosion at 800-950°C

SDP-1 + VSDP-13(VP)

(Ni-Со-Cr-Al-Y)+ +(Ni-Al-Si-В)

Protection against the salt corrosion at T≤700°C

SDP-1 + VSDP-20(VP)

(Ni-Со-Cr-Al-Y)+
+(Ni-Al-Co-Si-Y)

Ion saturation of structural steel surfaces

Protection against the salt corrosion at T≤700°C

Alumo-cobalt-yttrium-siliconizing out of VSDP-20 cathode plasma

Fe-Co-Al-Si-Y

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