Bond coat for Metco 312NS
11-21-2016, 07:07 AM,
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?
11-23-2016, 09:35 PM,
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
11-24-2016, 06:33 AM, (This post was last modified: 11-24-2016, 08:02 AM by Bharti Malvi.)
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

11-27-2016, 10:48 AM,
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
12-21-2016, 08:51 AM, (This post was last modified: 12-21-2016, 11:47 AM by Bharti Malvi.)
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


Possibly Related Threads…
Thread Author Replies Views Last Post
  Metallic HVOF bond coat to TBC APS top coat Gas turbines achmadarifudinh 0 1,109 07-08-2019, 08:34 AM
Last Post: achmadarifudinh
  Recomended bond coat for Metco 81 VFNS top coat achmadarifudinh 4 2,598 06-11-2018, 06:17 AM
Last Post: demionkrishan
  How do I do Bond Coat Selection? RV_DMG 2 3,705 03-13-2015, 11:44 PM
Last Post: loriolo
  Delamination in the bond coat sprayed on a Ti specimen Justin 9 8,567 01-06-2014, 10:00 PM
Last Post: KevinS
  I need advise on control of metco 405 bond coat Amoros 4 6,144 12-01-2011, 02:08 PM
Last Post: EmilyWatson
  Oxide anomalies in bond coat JBross 5 6,347 11-28-2011, 06:16 PM
Last Post: JBross
Shocked Cracks! in bond coat Christine 5 7,037 11-28-2011, 11:26 AM
Last Post: landemarre
  Possibility Study to use Stellite - 306 Bond Coat for 75Cr3C2 -25NiCr Top Coat -Reg sreenuvundela 2 5,080 09-14-2011, 05:36 AM
Last Post: sreenuvundela
  F50TF50 bond coat Harvey 6 8,635 07-10-2009, 07:01 PM
Last Post: derek
Sad Dark grey particles in Ni-Al bond coat? fhyuan 9 10,634 01-18-2009, 07:02 PM
Last Post: Gordon
  oxide stringers in the bond coat fhyuan 5 9,809 03-18-2008, 04:40 PM
Last Post: Jerrythespritzer
  Bond coat raviswanadha 2 5,814 11-20-2007, 07:18 AM
Last Post: drramc

Users browsing this thread: 1 Guest(s)

Surface Engineering Forum Sponsor - Alphatek Hyperformance Coatings Ltd