Some Metallurgical Aspects of the Blade Fatigue Problem in Aircraft Gas Turbines

CIM Bulletin, 1958

K. B. YOUNG

Possibly the most complex fatigue problem associated with the development of the axial-flow 'gas turbine is discussed in its broader aspects from the metallurgical viewpoint. Reference is made to nodal patterns, interference diagrams, etc. The use of such data in analysis of a turbine :blade failure is illustrated. Special attention is given to the influence of some metallurgical variables affecting fatigue strength and, in particular, heat treatment is shown to have a pronounced effect on .the relative fatigue and creep strength properties of a nickel chromium- cobalt base alloy suitable for turbine blade applications.
Mots Clés: Alloys, Engines, Failure, failures, Fatigue, fatigue strength, gas turbine, natural frequency, turbine blade, Strength, stress, Temperature, Turbines
$20.00