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金属学报(英文版) 1998
DAMAGE MECHANISMS OF INCONEL 738LC UNDER CREEP-FATIGUE LOADING CONDITIONS
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Abstract:
1.IntroductionFirststagebladesofhigh--temperaturelandbasegasturbinesaredamagedbyacombinationofcreepandfatigue.Theleadingedgeofthebladeinparticularissubjectedtoacompressivestrainholdconditionduringgasturbineoperation.Suchconditionwasknownasthesevereconditionsfornickel-basedsuperalloysandsignificantreductionofcreep-fatiguelifehasbeenreported'--'].Althoughsomelifepredictionmethodsforsuchconditionshavebeenproposed3],theyarenotsufficienttopredictthecreep--fatiguelifeingeneralduetolackofknowledgec…
