摘要
本文对点阵错配力和施加外载后的内应力大小及分布进行了有限元计算．结果表明，基体通道的应力分布与γ’颗粒的定向粗化有密切联系，定向粗化的驱动力是塑性变形不均匀分布导致的错配力各向异性松弛。
Finite element analysis was applied to the amplitude and distribution of internal stress before and after loading. The results showed that the stress distribution in matrix channels is closely related with the directional coarsening, and the driving force for directional coarsening is the anisotropic relaxation of lattice misfit resulted from the inhomogeneous distribution of plastic deformation.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2000年第3期258-261,共4页
Acta Metallurgica Sinica
基金
国家自然科学基金资助项目! 59871052
关键词
镍基
单晶
高温合金
有限元
定向粗化
Mises应力
nickel-base single crystal superalloy, finite element, directional coarsening, Mises stress
