A 3-dimensional multiple-slip crystal plasticity constitutive model was developed which was coupled to the temperature-dependent evolution of mobile and sessile dislocation densities. The accuracy of the model was tested by simulating experimental results for monocrystalline NiAl. It was found that there was good agreement between theory and experiment. The model was able to predict the anomalous increase in strength as a function of temperature.

Three-Dimensional Dislocation-Based Crystalline Constitutive Formulation for Ordered Intermetallics. T.Kameda, M.A.Zikry: Scripta Materialia, 1998, 38[4], 631-6