SYMPOSIA PAPER Published: 01 January 2011
STP49943S

Modeling Creep-Fatigue Deformation of Ni-Base Superalloys Using Crystal Viscoplasticity

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Crystal viscoplasticity enables one to correctly capture the anisotropic inelastic behavior of single crystal and directionally solidified alloys as well as the microstructural sensitivity in polycrystalline alloys. This paper reviews several physics-based crystal viscoplasticity models that have been established to predict the deformation response of Ni-base superalloys. The attributes of crystal viscoplasticity models necessary for predicting the creep-fatigue deformation are identified. Several new developments in constitutive modeling of Ni-base superalloys are discussed.

Author Information

Neu, R., W.
Georgia Institute of Technology, Atlanta, GA
Smith, D., J.
Georgia Institute of Technology, Atlanta, GA
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Details
Developed by Committee: E08
Pages: 255–277
DOI: 10.1520/STP49943S
ISBN-EB: 978-0-8031-7525-9
ISBN-13: 978-0-8031-7525-9