A dynamical model for the Portevin-le Chatelier bands

被引：30

作者：

Bharathi, MS

Rajesh, S

Ananthakrishna, G ^{[1
]}

机构：

[1] Indian Inst Sci, Mat Res Ctr, Bangalore 560012, Karnataka, India

[2] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

[3] Indian Inst Sci, Ctr Condensed Matter Theory, Bangalore 560012, Karnataka, India

来源：

SCRIPTA MATERIALIA | 2003年 / 48卷 / 09期

关键词：

dislocation densities; types of bands; dynamical model; dynamic strain aging;

D O I：

10.1016/S1359-6462(02)00653-X

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We show that an extension of Ananthakrishna's model to include spatial degrees of freedom produces spatially uncorrelated bands, hopping type and the continuously propagating type with increasing applied strain rate. The velocity of the continuously propagating bands is found to vary linearly with applied strain rate. (C) 2003 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：1355 / 1360

页数：6

共 21 条

[1] CHAOTIC FLOW IN A MODEL FOR REPEATED YIELDING [J].