A simple model for describing the mechanical state associated with γ′-particles in Ni-Al superalloys is presented. The model is based on the properties of the anisotropic elastic Green function. The strain and stress fields produced by a single cubic particle are described. The self-energy for parallelepiped γ′-particles is calculated, finding the cubic geometry as the energetically most favorable particle shape. The anisotropy interaction between γ′-particles is investigated. The computed results are further examined considering the interaction energy between constituting elements of the particles. The configurational force acting on a γ′-particle during a creep test is analyzed. © World Scientific Publishing Company.
Calzado, L., Yepez-Martinez, H., & Calderon, H. A. (2007). Modeling the micromechanical state of γ′-precipitates in Ni-based superalloys. International Journal of Modern Physics B, 3733-3744. https://doi.org/10.1142/S0217979207037612