Research Article

High Cycle Fatigue Life Prediction of Single-Crystal Specimen Based on TCD Method and Crystal Plasticity Theory

Table 2

Model parameters.

ParametersSymbols900°C980°C1050°C

Yield stress (MPa)895.4680.0493.3
Reference shear stress (MPa)365.5277.6201.4
Elastic modulus (MPa)918308053069300
Shear modulus (MPa)972008560090000
Poisson ratio0.3860.3900.399
Reference shear strain rate (s-1)0.0030.0030.003
Strain rate sensitivity0.020.020.02
Hardening modulus (MPa)434.5312.0204.8
Correction stress (MPa)300.0296.4293.3
Correction parameter1.31.31.3