STRUCTURAL STATES WITH HIGH CURVATURE OF THE CRYSTAL LATTICE IN SUBMICROCRYSTALLINE AND NANOCRYSTALLINE METALLIC MATERIALS

被引：14
|
作者：
Tyumentsev, A. N. [1 ,2 ]
Ditenberg, I. A. [1 ]
机构：
[1] Russian Acad Sci, Inst Strength Phys & Mat Sci, Siberian Branch, Tomsk, Russia
[2] Natl Res Tomsk State Univ, VD Kuznetsov Siberian Phys Tech Inst, Tomsk, Russia
来源：
RUSSIAN PHYSICS JOURNAL | 2012年 / 54卷 / 09期
基金：
俄罗斯基础研究基金会;
关键词：
large and severe plastic deformations; microstructure; submicrocrystalline and nanocrystalline states; transmission electron microscopy; curvature of crystal lattice; local internal stresses and their gradients;
D O I：
10.1007/s11182-012-9711-y
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Experimental data on the mechanisms of the formation of structural states with high curvature of the crystal lattice in submicrocrystals and nanocrystals of metallic materials under various conditions of intense mechanical action are summarized. It has been revealed how the quantitative parameters of these states are related to the ability of a material to relax to these states, to the features of the material nanocrystalline structure, to the deformation method and strain. Analysis of the main factors that determine these parameters and the characteristics of the elastically stressed state in high curvature zones of the crystal has been performed.
引用
收藏
页码：977 / 988
页数：12
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