Abstract: An experimental study has been performed to determine potential error sources in skin-friction balance measurements. A floating-element balance, large enough to contain the instrumentation needed ...

Abstract: Finite element analyses show that maximum thermal stresses in a typically cooled turbine blade are approximately 40 percent larger than they are if calculated assuming constant, average temperature ...

Abstract: A study measuring the effects of a molten sulfate/chloride salt on the creep/fatigue behavior of a nickel base turbine blade superalloy, Udimet 720, at 1300°F (704°C) is described. ...

Abstract: Results from an analysis of cracked first-stage blades (or buckets) from two General Electric MS7001E industrial/electric utility gas turbines are presented. Numerous cracks were observed along ...

Abstract: This paper presents the analysis and corrective action taken to solve a flow-induced nonsynchronous vibration failure problem encountered in the last-stage rotating blade in a large industrial ...

Abstract: The depth of internal oxidation and nitridation from the surface of the 16 cooling holes in a first-stage turbine blade was measured by optical microscopy after 32,000 hours of service. Maximum ...

Abstract: Low temperature hot corrosion effects on the low cycle fatigue (LCF) life and fracture morphology of a Udimet 720 alloy and the effectiveness of a protective coating in minimizing life degradation ...

Abstract: Analyses of first-stage nozzle cracking in General Electric Model 7001B and 7001E industrial gas turbines are presented. Empirical algorithms are developed to predict the maximum extent of cracking ...