Abstract
The addition of noble metals has been reported to improve the corrosion resistance of aluminide and overlay coatings for gas turbine airfoils. The production and structure of a CoCrAlY + Pt coating are described. This coating is superior in oxidation and hot corrosion resistance to a coating made of the same CoCrAlY material without platinum. The 0.6% ductility temperature T d for these two coating is similar. However, mechanical damage greatly raises the T d value of CoCrAlY + Pt. This is attributed to a favorable residual stress system locally destroyed by the damage.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Paper version not known
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
