Quantification of microstructure refinement in aluminium deformed by equal channel angular extrusion: Route A vs. route Be in a 90° die

被引：17
|
作者：
Mishin, Oleg V. [1 ]
Bowen, Jacob R. [2 ]
Lathabai, Sri [3 ]
机构：
[1] Tech Univ Denmark, Riso Natl Lab Sustainable Energy, Mat Res Div, Danish Chinese Ctr Nanomet, DK-4000 Roskilde, Denmark
[2] Tech Univ Denmark, Riso Natl Lab Sustainable Energy, Fuel Cells & Solid State Chem Div, DK-4000 Roskilde, Denmark
[3] CSIRO Proc Sci & Engn, Clayton, Vic 3169, Australia
来源：
SCRIPTA MATERIALIA | 2010年 / 63卷 / 01期
基金：
新加坡国家研究基金会; 中国国家自然科学基金;
关键词：
Equal channel angular extrusion (ECAE); Aluminium; Electron backscatter diffraction (EBSD); Deformation structure; MECHANICAL-PROPERTIES; GRAIN-REFINEMENT; EVOLUTION; ALLOYS; COPPER; ECAP;
D O I：
10.1016/j.scriptamat.2010.02.042
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Microstructures in the centre of two commercial purity aluminium billets extruded through a 90 degrees die either with or without 90 degrees rotations between passes have been investigated using electron backscatter diffraction after eight passes of equal channel angular extrusion. Local heterogeneities in the form of low misorientation regions were present in both samples. The fraction of high-angle boundaries was found to be slightly greater in the sample extruded without rotation. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：20 / 23
页数：4
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