Modeling the micromechanical state of γ′-precipitates in Ni-based superalloys

L. Calzado, H. Yepez-Martinez, H. A. Calderon

Research output: Contribution to journalArticle

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. © World Scientific Publishing Company.
Original languageAmerican English
Pages (from-to)3733-3744
Number of pages3358
JournalInternational Journal of Modern Physics B
DOIs
StatePublished - 20 Aug 2007

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