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"What is P16TF3 copper nickel - indium alloy?"
An ongoing discussion beginning back in 2006 ...2006
Q. I JUST HAD A CUSTOMER CALL ME IN REGARDS TO P16TF3 COPPER NICKEL - INDIUM ALLOY - WE ARE A POWDER COATING JOB SHOP, I THINK THIS MAY BE A PLATING, BUT CUSTOMER FELT IS WAS A POWDER COATING. HE ONLY HAD A SMALL QUANTITY OF PARTS (10). CAN YOU HELP? - THANKS CAROLCAROL A. HERRING
POWDER COATING - WICHITA, Kansas
A. P16TF3 is a General Electric Aircraft Engines specification for a Thermal Spray Process. Largely superseded by the newer P16TF5 spec. The application method (Class A = Arc spray, B= HVOF) and GE-approved metal powder should also be specified. As GE has rigorous supplier qualification requirements, and FAA & DoD regulations may also apply, I suggest declining this job.
Plasma sprayed Cu-In-Ni coatings, with MoS2-based dry film lubrication, are used to prevent galling & wear of titanium in jet engines. The melting point of GE alloy H50 is above 2100 °F.
- Goleta, California
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February 6, 2009
Q. Can anyone advise as to the best way of chemically stripping a Copper-Nickel-Indium coating like this....is electrolytic options available?Nigel Gill, BSc MIMF MRSC
Aerospace. - Glasgow, Scotland
March 15, 2017
A. We apply Cu Ni In with a twin Wire arc on GE parts, to strip the coating, use 50% nitric acid and DI water.George Kassaseya
Pacific Aerodynamic - Orange, California