共 21 条
- [21] Tensile behavior of columnar grained Cu with preferentially oriented nanoscale twins[J]. ACTA MATERIALIA, 2011, 59 (18) : 6927 - 6937You, Z. S.Lu, L.Lu, K.
Dislocation characterization in fatigued Cu with nanoscale twins
被引：7
作者：
Pan, Qingsong
[1
]
Lu, Lei
[1
]
机构：
[1] Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
关键词：
COLUMNAR-GRAINED CU;
COPPER;
DEFORMATION;
POLYCRYSTALS;
STABILITY;
BEHAVIOR;
SAMPLES;
DAMAGE;
D O I：
10.1007/s40843-015-0104-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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 characterize 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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页码：915 / 920
页数：6
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