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

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页码：3733 / 3744

页数：12

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