Effect of δ-Ferrite on the Properties of Martensitic Steels
The causes of formation of cracks in turbine vanes from high-chromium steels of martensitic class are studied. Spectrum, fractographic, and metallographic analyses of test pieces cut from turbine rotor blades in the state as delivered and after service are performed.
Key wordscracks fatigue martensite δ-ferrite chromium nitride
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