Determination of Metal Life for New Nickel Alloy ÉP800-VD Rotor Blades
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Results are presented for work on manufacture of a new set of first stage rotor blades made of nickel alloy ÉP800-VD for a gas turbine with power of 45MWproduced by OAO Turboatom. Blade life is determined on the basis of studying metal stress-rupture strength. Reasons are established for crack formation during manufacture.
Keywordsgas turbine first stage rotor blades nickel alloy ÉP800-VD short-term mechanical properties long-term strength life reasons for crack formation stamping cracks
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