A comparison of texture results obtained using precession electron diffraction and neutron diffraction methods at diminishing length scales in ordered bimetallic nanolamellar composites

被引：51
作者：
Carpenter, J. S. [1 ]
Liu, X. [2 ,3 ]
Darbal, A. [2 ,3 ,4 ]
Nuhfer, N. T. [2 ,3 ]
McCabe, R. J. [1 ]
Vogel, S. C. [1 ]
LeDonne, J. E. [2 ,3 ]
Rollett, A. D. [2 ,3 ]
Barmak, K. [2 ,3 ,5 ]
Beyerlein, I. J. [1 ]
Mara, N. A. [1 ]
机构：
[1] Los Alamos Natl Lab, Los Alamos, NM USA
[2] Carnegie Mellon Univ, Mat Res Sci & Engn Ctr, Pittsburgh, PA 15213 USA
[3] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA
[4] NanoMEGAS USA, Tempe, AZ USA
[5] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY USA
来源：
SCRIPTA MATERIALIA | 2012年 / 67卷 / 04期
关键词：
Transmission electron microscopy (TEM); Neutron diffraction; Nanocomposites; Multilayers; Metals and alloys; CHANNEL ANGULAR EXTRUSION; NANOLAYERED COMPOSITES; MULTILAYER COMPOSITES; MECHANICAL-PROPERTIES; ROLLING TEXTURES; EVOLUTION; COPPER; MICROSTRUCTURE; ORIENTATION; STRENGTH;
D O I：
10.1016/j.scriptamat.2012.05.018
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Precession electron diffraction (PED) is used to acquire orientation information in Cu-Nb nanolamellar composites fabricated by accumulative roll bonding (ARB). The resulting maps quantify the grain size, shape, orientation distributions and interface planes in the vicinity of nanometer-thick deformation twins. The PED-based texture results compare favorably with bulk textures provided by neutron diffraction measurements, indicating uniformity in the ARB Cu-Nb texture. Additionally, {112}(Cu)parallel to{112}(Nb) interfaces are present, suggesting that ARB techniques can lead to stable interfaces with a special crystallography. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：336 / 339
页数：4
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