Dislocation characterization in fatigued Cu with nanoscale twins
查看参考文献21篇
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文摘
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Previous studies have shown that strain-controlled cyclic stability was maintained in bulk Cu samples with highly oriented nanoscale twins. In order to explore the underlying fatigue mechanism, transmission electron microscopy observations under two-beam diffraction condition were utilized to charac-terize the dislocation configurations in the twin/matrix layers of as-fatigued nanotwinned Cu. It was clarified that the threading dislocations with Burgers vector parallel to twin boundaries are mainly active during fatigue. A three-dimensional stereo projection was re-configured for demonstrating the special structure of dislocations in nanoscale twins. |
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其他语种文摘
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块体择优取向纳米孪晶Cu在应变疲劳时保持循环稳定.为了研究其本征疲劳机制, 本文利用透射电子显微镜在双束条件下研究了纳米孪晶Cu疲劳后孪晶片层内位错形貌特征.结果表明纳米孪晶Cu的疲劳变形多由受限于孪晶片层内部的滑移方向平行于孪晶界面、滑移面倾斜于孪晶界面的单滑移贯穿位错主导.通过三维投影模型重构了贯穿位错在纳米孪晶片层内的空间分布. |
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来源
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Science China. Materials
,2015,58(12):915-920 【核心库】
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DOI
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10.1007/S40843-015-0104-8
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地址
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Institute of Metal Research, Chinese Academy of Sciences, Shenyang National Laboratory for Materials Science, Chinese Academy of Sciences, Shenyang, 110016
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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2095-8226 |
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学科
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金属学与金属工艺 |
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基金
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国家自然科学基金
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国家973计划
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文献收藏号
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CSCD:5598548
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参考文献 共
21
共2页
|
|
1.
Lu L. Ultrahigh strength and high electrical conductivity in copper.
Science,2004,304:422-426
|
CSCD被引
275
次
|
|
|
|
|
2.
Lu K. Strengthening materials by engineering coherent internal boundaries at the nanoscale.
Science,2009,324:349-352
|
CSCD被引
243
次
|
|
|
|
|
3.
Lu L. Work hardening of polycrystalline Cu with nanoscale twins.
Scripta Mater,2012,66:837-842
|
CSCD被引
17
次
|
|
|
|
|
4.
You Z S. Tensile behavior of columnar grained Cu with preferentially oriented nanoscale twins.
Acta Mater,2011,59:6927-6937
|
CSCD被引
32
次
|
|
|
|
|
5.
Shute C J. Microstructural stability during cyclic loading of multilayer copper/copper samples with nanoscale twinning.
Scripta Mater,2009,60:1073-1077
|
CSCD被引
8
次
|
|
|
|
|
6.
Shute C J. Detwinning, damage and crack initiation during cyclic loading of Cu samples containing aligned nanotwins.
Acta Mater,2011,59:4569-4577
|
CSCD被引
11
次
|
|
|
|
|
7.
Yoo B G. Quantitative damage and detwinning analysis of nanotwinned copper foil under cyclic loading.
Acta Mater,2014,81:184-193
|
CSCD被引
1
次
|
|
|
|
|
8.
Pan Q S. Fatigue behavior of columnar-grained Cu with preferentially oriented nanoscale twins.
Acta Mater,2013,61:1383-1393
|
CSCD被引
18
次
|
|
|
|
|
9.
Pan Q S. Strain-controlled cyclic stability and properties of Cu with highly oriented nanoscale twins.
Acta Mater,2014,81:248-257
|
CSCD被引
12
次
|
|
|
|
|
10.
Suresh S.
Fatigue of Materials (2~(nd) ed.),1998
|
CSCD被引
1
次
|
|
|
|
|
11.
Mughrabi H. Cyclic deformation and fatigue properties of very fine-grained metals and alloys.
Int J Fatigue,2010,32:1413-1427
|
CSCD被引
24
次
|
|
|
|
|
12.
Agnew S R. Overview of fatigue performance of Cu processed by severe plastic deformation.
J Electron Mater,1999,28:1038-1044
|
CSCD被引
9
次
|
|
|
|
|
13.
Hoppel H W. Cyclic deformation behaviour of utrafine-grained size copper produced by equal channel angular pressing.
Proceedings of Materials Week 2000,2000:1-8
|
CSCD被引
1
次
|
|
|
|
|
14.
Mughrabi H. Cyclic deformation of face-centred cubic polycrystals: a comparison with observations on single crystals.
Proceedings of the Second Ris0 International Symposium on Metallurgy and Material Science,1981:87-98
|
CSCD被引
1
次
|
|
|
|
|
15.
Polak J. Cyclic stress-strain response and dislocation structures in polycrystalline copper.
Mater Sci Eng,1984,63:189-196
|
CSCD被引
1
次
|
|
|
|
|
16.
Pedersen O B. The cyclic stress-strain curve of polycrystals.
Acta Metall,1982,30:57-62
|
CSCD被引
1
次
|
|
|
|
|
17.
Williams D B.
Transmission Electron Microscopy: A Textbook for Materials Science (2~(nd) ed.),2009
|
CSCD被引
1
次
|
|
|
|
|
18.
Nix W. Mechanical properties of thin films.
Metall Trans A,1989,20:2217-2245
|
CSCD被引
47
次
|
|
|
|
|
19.
Misra A. Length-scale-dependent deformation mechanisms in incoherent metallic multilayered composites.
Acta Mater,2005,53:4817-4824
|
CSCD被引
75
次
|
|
|
|
|
20.
Winter A T. Dislocation microstructures in fatigued copper polycrystals.
Acta Metall,1981,29:735-748
|
CSCD被引
2
次
|
|
|
|
|
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