Microstructures and boundary populations in materials produced by equal channel angular extrusion

被引：150

作者：

Mishin, OV ^{[1
]}

Jensen, DJ ^{[1
]}

Hansen, N ^{[1
]}

机构：

[1] Riso Natl Lab, Mat Res Dept, Ctr Fundamental Res, DK-4000 Roskilde, Denmark

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2003年 / 342卷 / 1-2期

关键词：

equal channel angular extrusion; transmission electron microscopy; aluminum alloys; copper; boundary misorientations;

D O I：

10.1016/S0921-5093(02)00311-8

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Two aluminum alloys and two copper samples heavily deformed by equal channel angular extrusion (ECAE) were investigated. In these materials, microstructures and misorientation distributions were characterized in the transmission electron microscope. Deformation structures with a mixture of low- and high-angle boundaries were found in all samples. After a similar strain, low-angle boundaries were more frequent in copper than in the Al alloys. Boundary populations and spatial characteristics of different boundary types in ECAE-processed materials are compared with those produced by rolling. (C) 2002 Published by Elsevier Science B.V.

引用

页码：320 / 328

页数：9

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