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

被引：0
|
作者：
Calzado, L. [1 ]
Yepez-Martinez, H. [1 ]
Calderon, H. A. [2 ]
机构：
[1] Univ Autonoma Cuidad Mexico, Mexico City 09790, DF, Mexico
[2] ESFM IPN, Dept Ciencia Mat, Mexico City, DF, Mexico
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2007年 / 21卷 / 21期
关键词：
strain energy; micromechanics;
D O I：
10.1142/S0217979207037612
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A simple model for describing the mechanical state associated with gamma'-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 gamma'-particles is calculated, finding the cubic geometry as the energetically most favorable particle shape. The anisotropy interaction between gamma'-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 gamma'-particle during a creep test is analyzed.
引用
收藏
页码：3733 / 3744
页数：12
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