The use of transmission and scanning electron microscopy to study thermomechanically fatigued CoNiCrAlY coated superalloys
This study is aimed at supporting the efforts for developing life prediction methodologies of coated superalloys under thermo-mechanical fatigue (TMF). The present paper illustrates some 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: FISICA 98, Oporto (PT), September 7-10, 1998
Availability: Available from (1) as Paper EN 41768 ORA
Record Number: 199811385 / Last updated on: 1998-11-10
Original language: en
Available languages: en