Evolution of Microstructure and its Parameters after Deformation of Polycrystalline Cu-Al Alloys with Different Stacking Fault Energy

被引：0
|
作者：
Koneva, N. A. [1 ]
Trishkina, L., I [1 ]
Cherkasova, T., V [1 ,2 ]
Solov'ev, A. N. [1 ]
Cherkasov, N., V [1 ]
机构：
[1] Tomsk State Univ Architecture & Bldg, Tomsk, Russia
[2] Natl Res Tomsk State Univ, Tomsk, Russia
来源：
RUSSIAN PHYSICS JOURNAL | 2021年 / 64卷 / 07期
关键词：
metals; alloys; strain; grain size; bending and torsion; crystal lattice; stacking fault energy; structural defects;
D O I：
10.1007/s11182-021-02447-7
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Transmission electron microscopy (TEM) is used to investigate the evolution of the dislocation substructure after active plastic deformation of copper-aluminum alloys with the aluminum content varying between 0.5-14 at.%. Using TEM images, the types of the dislocation substructure are determined depending on the alloying element concentration and the strain intensity. The parameters of the defect structure, such as average scalar dislocation density, bending and torsion of the crystal lattice, and microtwin density are measured. It is found that the stacking fault energy exerts an effect on the defect accumulation.
引用
收藏
页码：1219 / 1224
页数：6
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