The evolution of the microstructure and crack propagation on CoNiCrAlY coated superalloys upon thermo-mechanical fatigue
This study is aimed at supporting the efforts for developing life prediction methodologies of coated superalloys under thermo-mechanical fatigue (TMF). This paper reports on the microstructural changes and the crack propagation observed in CoNiCrAlY coated SRR99 superalloy under different thermo-mechanical fatigue test conditions. The complex microstructure of the interface region is described and the main mechanisms for residual stress relieve are identified and discussed.
Bibliographic Reference: Paper presented: Euromat 98, Lisboa (PT), July 21-24, 1998
Availability: Available from (1) as Paper EN 41767 ORA
Record Number: 199811384 / Last updated on: 1998-11-10
Original language: en
Available languages: en