Coatings on aeroengine compressor blades ?
Coatings on aeroengine compressor blades ?
(OP)
What coatings are used on the aeroengine (commercial jets or military jets) compressor blades to guard against corrosion and erosion ?
Have PVD coatings been tried ? Are they successful ?
Have PVD coatings been tried ? Are they successful ?





RE: Coatings on aeroengine compressor blades ?
One exception is a compressor blade we make for land use, (it's a power gen gas turbine) and that is made from stainless steel and coated with Sermatel 5380DP, which is a inorganic corrosion resistant coating. I *think* that the particular engine this blade is destined for is used mainly on oil platforms, and this coating is used because of the corrosive marine environment it'll be used in.
I can;t think of a single compressor blade for flight use that has a coating on it though....! Corrosion isn't really a problem:most blades are made from titanium, stainless steel, or aluminium with the occasional nickle based alloy thrown in for fun.
Turbine blades are another story all together though.....
RE: Coatings on aeroengine compressor blades ?
Note: Go to: http://www.asm-intl.org/
"bookstore"
"by-subject index"
Look in the following sections for some very good tech references related to this subject:
wear
corrosion
surface treatments
Regards, Wil Taylor