Abstract: The most severe stresses that turbine airfoils encounter are thermally induced by extreme temperature gradients and rapid thermal transients. These thermally induced stresses combined with mechanical ...

Abstract: The thermal fatigue environment of gas turbine engine airfoils is severe and is often a life-limiting mode of failure. Alloy and coating system evaluation and accurate service life predictions ...

Abstract: Five gas turbine disk alloys representing a range of strengths and processing methods were tested for resistance to both cyclic crack initiation and propagation at 650° C using a 0.33 Hz ...

Abstract: The best measure of performance in a jet engine is the thrust-to-weight ratio. Cast single-crystal superalloys provide higher temperature capability and offer opportunities for significant improvements ...