Orientation imaging microscopy of ultrafine-grained nickel

被引:245
作者
Zhilyaev, AP [1 ]
Kim, BK
Nurislamova, GV
Baró, MD
Szpunar, JA
Langdon, TG
机构
[1] Univ Autonoma Barcelona, Dept Fis, Grp Fis Mat 2, Bellaterra 08193, Barcelona, Spain
[2] Ufa State Aviat Tech Univ, Inst Phys Adv Mat, Ufa 450000, Russia
[3] McGill Univ, Dept Min & Met, Montreal, PQ H3A 2B2, Canada
[4] Univ So Calif, Dept Aerosp & Mech Engn, Los Angeles, CA 90089 USA
[5] Univ So Calif, Dept Mat Sci, Los Angeles, CA 90089 USA
关键词
nickel; high-pressure torsion; equal channel angular pressing; grain boundaries; orientation imaging microscopy;
D O I
10.1016/S1359-6462(02)00018-0
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Orientation imagining microscopy was used to measure the distributions of grain boundary misorientations in ultrafine-grained nickel processed by high-pressure torsion and equal-channel angular pressing. Both procedures give high fractions of high-angle boundaries but also higher fractions of low-angle boundaries than anticipated from a random distribution. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:575 / 580
页数:6
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