Modelling grain refinement in fcc metals during equal-channel angular pressing by route "C"

被引：14
|
作者：
Enikeev, Nariman A.
Abdullin, Marat F.
Nazarov, Ayrat A.
Beyerlein, Irene J.
机构：
[1] Ufa State Aviat Tech Univ, Inst Phys Adv Mat, Ufa, Russia
[2] Los Alamos Natl Lab, Los Alamos, NM USA
来源：
INTERNATIONAL JOURNAL OF MATERIALS RESEARCH | 2007年 / 98卷 / 03期
关键词：
equal channel angular pressing (ECAP); grain refinement; substructure; texture; modelling;
D O I：
10.3139/146.101451
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Grain refinement and texture evolution during equal channel angular pressing (ECAP) by route "C" are modelled by the visco-plastic self-consistent (VPSC) model incorporating a disclination-based grain subdivision criterion. Simple shear and analytical fan models are used to describe the deformation history during ECAP. Textures calculated after the first four passes of ECAP by both the standard VPSC and the VPSC/disclination models are compared to available experimental data that show a better predictive capacity of the model incorporating the disclination subdivision criterion.
引用
收藏
页码：167 / 171
页数：5
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