Kinetic dislocation model of microstructure evolution during severe plastic deformation

被引：30
|
作者：
Enikeev, Nariman A.
Kim, Hyoung Seop [1 ]
Alexandrov, Igor V.
机构：
[1] RAS, Inst Mech, Ufa Sci Ctr, Ufa, Russia
[2] Chungnam Natl Univ, Taejon 305764, South Korea
[3] USATU, Inst Phys Adv Mat, Ufa, Russia
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2007年 / 460卷 / 619-623期
基金：
新加坡国家研究基金会;
关键词：
dislocation boundaries; grain refining; plastic deformation; ultrafine grained microstructure; modelling; equal channel angular pressing;
D O I：
10.1016/j.msea.2007.02.005
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Evolution of dislocation cell microstructures during severe plastic deformation was analyzed using a modified kinetic dislocation model based on the two dimensional approach by ETMB [Y. Estrin, L.S. Toth, A. Molinari, Y. Brechet, Acta Mater. 46 (1998) 5509]. The proposed model simulated decreasing dislocation density after a maximum point and increasing misorientation angle with strain, which fits with experimental results well. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：619 / 623
页数：5
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