Abstract
Abstract The behavior of two new high-strength γ'-Ni3Al-base bond coats have been compared to a baseline β-(Pt,Ni)Al bond coat via thermal cycling to a maximum temperature of 1204 °C. The rumpling amplitude of the γ' coating is significantly lower than the (Pt,Ni)Al as characterized by a nondestructive optical profilometry technique. The γ' coatings resist rumpling and spallation of the thermally grown oxide in spite of faster oxidation compared to Pt-modified NiAl. This behavior is analyzed using an analytical rumpling model to explain that the improved bond coat strength is the major contributing factor to rumpling inhibition.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
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
