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

页码：619 / 623

页数：5

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