Abstract
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.
Original language | English |
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Pages (from-to) | 3733-3744 |
Number of pages | 12 |
Journal | International Journal of Modern Physics B |
Volume | 21 |
Issue number | 21 |
DOIs | |
State | Published - 20 Aug 2007 |
Keywords
- Micromechanics
- Strain energy