A modified constitutive model considering microstructure degradation of Ni-based superalloys and its application to microstructural damage calculation
Journal of Alloys and Compounds(2021)
摘要
•Chaboche constitutive model of a superalloy is modified by considering degradation.•Conduct FE simulation to predict stress-strain response of pre-coarsening superalloy.•Microstructural damage evolution of blade was simulated by degradation kinetic model.
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关键词
DS superalloy,Microstructure degradation,Constitutive model,Damage evolution,Turbine blade
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