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- W2390836251 abstract "In this paper,the creep property at different temperatures and stresses,the morphology evolution of γ′ phase,deformation characteristic and creep fracture mechanism are investigated in improved D29 single crystal nickel-base superalloy with the orientation .The conclusions can be drawn as following: Under the condition of 980~1 020℃/200~280MPa,the creep curves consist of three stages.In the primary stage of creep at high temperature and low stress,the structure feature of the γ′ phase is that the cubic γ′ phase transforms into the lamellar raft structure,the deformation mechanism is the dislocation movement in the octahedral slip systems of the matrix channel,the dislocation network forms when dislocations meet and react from two directions.The deformation mechanism is the dislocation climbing over the γ′ rafts during the steady creep stage.The main reason for creep fracture is that a large number of dislocations shearing into the γ′ rafts from the γ/γ′ phase interfaces where the dislocation networks are damaged at the later creep stage." @default.
- W2390836251 created "2016-06-24" @default.
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- W2390836251 date "2009-01-01" @default.
- W2390836251 modified "2023-09-28" @default.
- W2390836251 title "Tensile Creep Characteristic of a Single Crystal Nickel Base Superalloy" @default.
- W2390836251 hasPublicationYear "2009" @default.
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