Propagation of deformation bands investigated by laser scanning extensometry

被引：23

作者：

Casarotto, L ^{[1
]}

Tutsch, R

Ritter, R

Weidenmüller, J

Ziegenbein, A

Klose, F

Neuhäuser, H

机构：

[1] Tech Univ Braunschweig, Inst Prod Tech, D-38106 Braunschweig, Germany

[2] Tech Univ Braunschweig, Inst Met Phys & Nukl Festkorperphys, D-38106 Braunschweig, Germany

来源：

COMPUTATIONAL MATERIALS SCIENCE | 2003年 / 26卷

关键词：

D O I：

10.1016/S0927-0256(02)00401-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Luders band and Portevin-LeChatelier (PLC) band propagation in polycrystalline Cu-0.15at.%Al has been studied by multiple zone laser scanning extensometry during tensile deformation. The dependence of the propagation rate on the external deformation rate is investigated in a wide range ( = 6.67 x 10(-6)-1.3 x 10(-2) s(-1)) at selected temperatures (100-300 degreesC), in particular for the PLC bands of type B which propagate in a jerky manner. The local strain rates within the bands are determined and the results are compared with recent theoretical modelling of PLC band propagation. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：210 / 218

页数：9

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