Effect of cycle type on the damage of a diffusion aluminide coating on a ni-based monocrystalline superalloy tested under TMF conditions
The work presented is a characterization of the coating damage accumulated during strain controlled thermo-mechanical fatigue (TMG) tests. Aluminide coated SRR99 samples were tested over strain ranges where creep, fatigue and oxidation heavily degrade the coating prior to the fatigue failure of the substrate. Light microscope images recorded during and after TMF tests were used for the quantification of coating damage. The results are discussed in terms of the relationship between coating cracking and the solidication structure of the substrate, and the relative contributions of time independent and time dependent damage mechanisms to the degeneration of the coating.
Bibliographic Reference: Paper presented: 3.as Jornadas Ibéricas de Fractura, Luso (PT), March 27-29, 1996
Availability: Available from (1) as Paper EN 39913 ORA
Record Number: 199611384 / Last updated on: 1996-12-04
Original language: en
Available languages: en