Abradable Coating Thickness limitation
07-25-2015, 08:03 AM,
#1
Abradable Coating Thickness limitation
Sir

1. In technical bulletin for Metco 313NS coating thickness limitation is None- can we go beyond 4mm thickness for lybrith seals in compressor section of gas turbine engines?

2. Are metco 312NS based abradable coatings compatible against alluminium alloy based rotors?

Please guide in this regard
Reply
07-28-2015, 10:57 PM,
#2
RE: Abradable Coating Thickness limitation
(07-25-2015, 08:03 AM)wasif Wrote: Sir

1. In technical bulletin for Metco 313NS coating thickness limitation is None- can we go beyond 4mm thickness for lybrith seals in compressor section of gas turbine engines?

2. Are metco 312NS based abradable coatings compatible against alluminium alloy based rotors?

Please guide in this regard

Hi wasif,
1. Yes you can spray 313NS beyond 4mm.

2. I can't answer...I know for rotor path clearances using coatings similar to 312NS for Ni based alloys is compatible but with aluminum alloys I'm not sure. Ti-6Al-4V blades on Ni based abradables in a turbine compressor can be a fire hazard...so its best to have someone else with a better Material Engineering background consult you for the second question.

Regards,
John

Reply




Possibly Related Threads…
Thread Author Replies Views Last Post
  Amdry 9951. Anyone know the maximum coating thickness Antcarroll 2 644 01-29-2021, 08:17 AM
Last Post: loriolo
  WC-CO-CR hvof coating thickness measurement on Base SS 316L JRB VIRANI 3 1,532 06-20-2019, 09:16 AM
Last Post: loriolo
  Coating Thickness Measurement Equipment Taz 1 1,573 01-09-2019, 07:46 PM
Last Post: Lemster68
  How to determine the porosity level of Metco 320NS abradable coating? viewwer 6 5,574 11-23-2015, 09:57 AM
Last Post: Joris Kraak
  abradable coating failure stvon 11 6,584 11-17-2015, 12:33 PM
Last Post: Joris Kraak
  The thickness of coating minh_8888 5 5,355 03-25-2015, 10:31 AM
Last Post: Dr.Boris A.Eizner
  Drum Thickness Coating Requirement for SS316. samshah 0 2,084 11-13-2014, 04:56 PM
Last Post: samshah
  Erosion Test of an Abradable Coating baaddin 3 4,536 02-11-2014, 07:32 AM
Last Post: baaddin
  Abradable Coating-Bond Strength rayudugirish 9 11,667 01-06-2014, 09:55 PM
Last Post: derek
  coating thickness Brent 7 6,120 03-09-2013, 11:56 AM
Last Post: sreenuvundela
  uneven Wc coating thickness Brent 5 5,402 01-20-2012, 04:13 AM
Last Post: KevGarty
  COATING THICKNESS GAUGE ehasan 3 4,901 01-14-2011, 08:07 PM
Last Post: Gordon
Cool Instrument to check coating thickness of Thermal Barrier Coatings odski0317 5 15,879 12-01-2010, 10:09 AM
Last Post: dienngothe
  Coating Thickness Met.Eng. 2 3,674 12-01-2010, 04:17 AM
Last Post: omcblacksmith
  Limitation of operator age ahmadsahid 5 4,550 08-08-2009, 05:39 PM
Last Post: Gordon



Users browsing this thread: 1 Guest(s)





Surface Engineering Forum Sponsor - Alphatek Hyperformance Coatings Ltd