Turbine blade colour change
Turbine blade colour change
(OP)
hello,
I have a question for anybody willing to help me.
There has been rub against the shrouds, which eroded the blade tip. The blade material is nickel alloy and they are platinum-aluminide coated. Why has the surface blade turned blue (specially on the convex side, and close to blade root)?
thank you
I have a question for anybody willing to help me.
There has been rub against the shrouds, which eroded the blade tip. The blade material is nickel alloy and they are platinum-aluminide coated. Why has the surface blade turned blue (specially on the convex side, and close to blade root)?
thank you





RE: Turbine blade colour change
Are you flying the engine? My guess (I'm not an expert) is that if the blade got hot enough to change colour, or has crept to the point of eroding the tip, it's had it...
Mart