Highly influenced by the operating and repair history and also
depending on the material and design variant, the inner
casing and the mixing casings are assessed for their residual
life after 100,000 EOH.
In summary, life extension options for hot components
during regular HGP inspections and after long operating
periods 100,000 EOH were studied.
Repair methods and protective coatings have been
continuously improved for those hot components that need
regular life extension measures during hot-gas-path
inspections.