Powder Coating for Surface Table

[achmadarifudinh]

Hello guys, please i need your help and suggestion for my case

We have the surface table for the part industrial gas turbine engine, but get a problem how to prevent the oxidation and wear resistant of the surface table.

Could somebody help me.
Great Thanks before
Achmad Arifudin H

[Vadim Verlotski]

Hello guys, please i need your help and suggestion for my case

We have the surface table for the part industrial gas turbine engine, but get a problem how to prevent the oxidation and wear resistant of the surface table.

Could somebody help me.
Great Thanks before
Achmad Arifudin H

For this application we (Thermico GmbH) can offer one of our new high temperature coatings. There are three gas-tight and anti-corrosion layers to choose from. All three layers are applied by means of atmospheric plasma spraying with the burner Axial III:

1. Coating Cr3C2-NiCr-Cr for maximum application temperature of 800°C (continuous use in air) and a hardness of approx. 1000 HV0.3. Layer is suitable as oxidation protection, corrosion and wear protection for all steels and nickel base alloys.

2. Coating Cr-Cr2O3 for a maximum operating temperature of 1000°C (continuous use in air by 900°C) and a hardness of approx. 600 HV0.3. Layer is suitable as oxidation protection and high temperature corrosion protection for nickel superalloys, titanium alloys (max. 700°C) and for titanium aluminide (max. 900°C).

3. Coating ChroSiMol for a maximum operating temperature of 900°C (continuous use in air) and a hardness of about 900 HV0.3. Layer is suitable as oxidation protection and corrosion protection (especially resistant to strong acids) for all titanium alloys and steels with a thermal expansion coefficient < 13x10-6K-1.

[achmadarifudinh]

Hello guys, please i need your help and suggestion for my case

For this application we (Thermico GmbH) can offer one of our new high temperature coatings. There are three gas-tight and anti-corrosion layers to choose from. All three layers are applied by means of atmospheric plasma spraying with the burner Axial III:

1. Coating Cr3C2-NiCr-Cr for maximum application temperature of 800°C (continuous use in air) and a hardness of approx. 1000 HV0.3. Layer is suitable as oxidation protection, corrosion and wear protection for all steels and nickel base alloys.

2. Coating Cr-Cr2O3 for a maximum operating temperature of 1000°C (continuous use in air by 900°C) and a hardness of approx. 600 HV0.3. Layer is suitable as oxidation protection and high temperature corrosion protection for nickel superalloys, titanium alloys (max. 700°C) and for titanium aluminide (max. 900°C).

3. Coating ChroSiMol for a maximum operating temperature of 900°C (continuous use in air) and a hardness of about 900 HV0.3. Layer is suitable as oxidation protection and corrosion protection (especially resistant to strong acids) for all titanium alloys and steels with a thermal expansion coefficient < 13x10-6K-1.

Our spesification isn't operate on the high temperature. just surface table for finishing check on the nozzle, stator, or vane segment.
So i need suggestion of wear resistant. Any idea for this case

Thanks

[Artyom]

Hello Achmad!

You can apply WC/Co/Cr, WOKA 3660 for example (68-72 HRC) or Cr3C2/NiCr, WOKA 7205 (61-66 HRC) using a HVOF method. These both materials have excellent wear resistance. But be careful - if the hardness of the surface table is less than 10 HRC, do not apply these coatings otherwise the coating can be crushed/forced through.

Another option is to apply NiCrBSi self-fluxing coating using the same HVOF spraying. This coating is more cheaper, however it has also good wear resistance.

Coating thickness - 200...300 microns for all three coating types.

Kind regards,
Artyom