Bond coat for Metco 312NS
11-21-2016, 07:07 AM,
#1
Bond coat for Metco 312NS
In technical bulletin for Metco 312NS, there is no mention of bond coat. Can It be coated directly on to Nickel substrate? If not, which bond coat is to be used?
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11-23-2016, 09:35 PM,
#2
RE: Bond coat for Metco 312NS
Hello Bharti

As with many others abradable coatings, it is necessary to use a bond coat, because this kind of coatings must be applyed with thermal spray coating system, it is not recommended to use APS any other technologies.
The bond coat will be applied as follow:
Ni5Al – M-359 coating for service below 650°C (1200°F).
NiCrAl – M-307 coating for service above 650°C (1200°F).
Best regards
Luigi
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11-24-2016, 06:33 AM, (This post was last modified: 11-24-2016, 08:02 AM by Bharti Malvi.)
#3
RE: Bond coat for Metco 312NS
Hello loriolo,

Thank you for the answer. I'll be using APS for coating.
Can I use Metco 450NS, Since both the powders you've suggested are not available here.
Could you please tell me what should be the thickness of bond coat as well as top coat? if the coating is to be applied for gas turbine abradable.

Thanks and Regards

Bharti
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11-27-2016, 10:48 AM,
#4
RE: Bond coat for Metco 312NS
Hi Bharti
Of course you can use Metco 450 NS. the one I used is the same powder but from FST instead of Metco, is a high quality powder and has lower price, about application with APS, it depend of the OEM specification, because the coating proprieties could change, I can send you a APS low power parameters set. if you tell me the APS system and Gun you want to use.
Best regards
Luigi
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12-21-2016, 08:51 AM, (This post was last modified: 12-21-2016, 11:47 AM by Bharti Malvi.)
#5
RE: Bond coat for Metco 312NS
Hello loriolo,

I'm going to coat Metco 301NS (Ni13Cr 8Fe 6.5BN 3.5Al 2Organic binder) abradable powder with Amperit 283.2 (Ni-5Al) Bond coat on Ni based substrate.

Will This work?

Can the above combination is feasible on Ti based substrate? If Not, Which bond coat is to be used?

I'll be using Unicoat pro plasma spray system platform (MEC- AMT AG Switzerland) with 9 MB 6 Axis robo spray gun and Twin 120A series plasma spray feeder.

What should be the coating thickness for Bond coat & Top coat?

Thank you

Bharti
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