(Received 3 December 2010; accepted 26 March 2011)
Published Online: 03 May 2011
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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.
Neu, R. W.
The George W. Woodruff School of Mechanical Engineering, Georgia Institute of TechnologySchool of Materials Science and Engineering, Georgia Institute of Technology, AtlantaAtlanta, GAGA
Smith, D. J.
The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA
Stock #: JAI103674